MODUL TEMA 10
i Penerapan Integral dalam Kehidupan Masyarakat Sehari-hari
Kata Pengantar
Modul Dinamis: Modul ini merupakan salah satu contoh bahan ajar pendidikan kesetaraan yang berbasis pada kompetensi inti dan kompetensi dasar dan didesain sesuai kurikulum 2013. Sehingga modul ini merupakan dokumen yang bersifat dinamis dan terbuka lebar sesuai dengan kebutuhan dan kondisi daerah masing-masing, namun merujuk pada tercapainya standar kompetensi dasar.
Matematika Paket C - Setara SMA/MA kelas XI
Modul Tema 10 : Penerapan Integral dalam Kehidupan Masyarakat Sehari-hari Penulis: Nursanto
Diterbitkan oleh: Direktorat Pembinaan Pendidikan Keaksaraan dan
Ditjen Pendidikan Anak Usia Dini dan Pendidikan Masyarakat-Kementerian Pendidikan dan Kebudayaan, 2018
iv+ 56 hlm + illustrasi + foto; 21 x 28,5 cm
Hak Cipta © 2018 pada Kementerian Pendidikan dan Kebudayaan Dilindungi Undang-Undang
P
endidikan kesetaraan sebagai pendidikan alternatif memberikan layanan kepada mayarakat yang karena kondisi geografi s, sosial budaya, ekonomi dan psikologis tidak berkesempatan mengiku-ti pendidikan dasar dan menengah di jalur pendidikan formal. Kurikulum pendidikan kesetaraan dikembangkan mengacu pada kurikulum 2013 pendidikan dasar dan menengah hasil revisi berdasarkan peraturan Mendikbud No.24 tahun 2016. Proses adaptasi kurikulum 2013 ke dalam kurikulum pendidikan kesetaraan adalah melalui proses kontekstualisasi dan fungsionalisasi dari masing-masing kompetensi dasar, sehingga peserta didik memahami makna dari setiap kompetensi yang dipelajari.Pembelajaran pendidikan kesetaraan menggunakan prinsip fl exible learning sesuai dengan karakteristik peserta didik kesetaraan. Penerapan prinsip pembelajaran tersebut menggunakan sistem pembelajaran modular dimana peserta didik memiliki kebebasan dalam penyelesaian tiap modul yang di sajikan. Kon-sekuensi dari sistem tersebut adalah perlunya disusun modul pembelajaran pendidikan kesetaraan yang memungkinkan peserta didik untuk belajar dan melakukan evaluasi ketuntasan secara mandiri.
Tahun 2017 Direktorat Pembinaan Pendidikan Keaksaraan dan Kesetaraan, Direktorat Jendral Pendidikan Anak Usia Dini dan Pendidikan Masyarakat mengembangkan modul pembelajaran pendidikan kesetaraan dengan melibatkan Pusat Kurikulum dan Perbukuan Kemdikbud, para akademisi, pamong belajar, guru dan tutor pendidikan kesetaraan. Modul pendidikan kesetaraan disediakan mulai paket A tingkat kompe-tensi 2 (kelas 4 Paket A). Sedangkan untuk peserta didik Paket A usia sekolah, modul tingkat kompekompe-tensi 1 (Paket A setara SD kelas 1-3) menggunakan buku pelajaran Sekolah Dasar kelas 1-3, karena mereka masih memerlukan banyak bimbingan guru/tutor dan belum bisa belajar secara mandiri.
Kami mengucapkan terimakasih atas partisipasi dari Pusat Kurikulum dan Perbukuan Kemdikbud, para akademisi, pamong belajar, guru, tutor pendidikan kesetaraan dan semua pihak yang telah berpartisipasi dalam penyusunan modul ini.
Jakarta, Desember 2018 Direktur Jenderal
Daftar Isi
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Petunjuk Penggunaan Modul
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Pengantar Modul
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WĞƌŚĂƚŝŬĂŶƉĂĚĂƉĂƌƚŝƐŝdžŝʹϭ͕džŝ͕ůƵĂƐƉĂƌƚŝƐŝƚĞƌƐĞďƵƚĚĂƉĂƚĚŝŚĂŵƉŝƌŝŽůĞŚƉĞƌƐĞŐŝƉĂŶũĂŶŐĚĞŶŐĂŶ ůĞďĂƌΔdžŝĚĂŶƉĂŶũĂŶŐfxi͕LJĂŝƚƵƐĞďĞƐĂƌŝс fxi͘Δdžŝ͘:ĂĚŝ͕ůƵĂƐĚĂĞƌĂŚĚŝďĂǁĂŚŬƵƌǀĂĨƉĂĚĂ ƐĞůĂŶŐĂ͕ďĚĂƉĂƚĚŝŚĂŵƉŝƌŝŽůĞŚ͗ ZWсϭнϮн͙нŶс i n i i x x f Δ
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͕LJĂŝƚƵ͗ f x dx b a³
с _ _ OLP → P i n i i x x f Δ¦
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WĞŶĞƌĂƉĂŶĂƚƵƌĂŶƉĂŶŐŬĂƚLJĂŶŐĚŝƉĞƌƵŵƵŵ͘ DŝƐĂůŬĂŶ ĨƵŶŐƐŝ Ƶ с Ő;džͿ ƚĞƌĚŝĨĞƌĞŶƐŝĂů ĂƚĂƵ ĚĂƉĂƚ ĚŝƚƵƌƵŶŬĂŶ ƐĞŚŝŶŐŐĂ gx dx du ′ = ͘ ĞŶŐĂŶ ŵĞŶƵůŝƐŬĂŶdu= g′xdx͕ĚŝƉĞƌŽůĞŚ dx x g x g r
³
> @ ′ с C r u du u r r + + = +³
͕ĚŝŵĂŶĂƌďŝůĂŶŐĂŶƌĞĂůĚĂŶƌ≠Ͳϭ͘ ŽŶƚŽŚϭ dĞŶƚƵŬĂŶ͗ Ă͘³
x−xx−dx Đ͘³
x+xdx ď͘³
x+xdx WĞŶLJĞůĞƐĂŝĂŶ͘ Ă͘ DŝƐĂůŬĂŶƵсdžϰʹϯdž͕ŵĂŬĂĚƵс;ϰdžϯʹϯͿĚdž͘ŬŝďĂƚŶLJĂ͕ dx x x x³
− − с³
udu сu +C с x − x +C ď͘ DŝƐĂůŬĂŶƵсdžϮнϰ͕ŵĂŬĂĚƵсϮdžĚdžƐĞŚŝŶŐŐĂ dx x x³
+ с³
x+xdx с³
x +xdx с³
uduс u +C с x+ н Đ͘ WĞŵŝƐĂůĂŶ Ƶ с džϮͬϮ н ϯ ŵĞŶŐŚĂƐŝůŬĂŶ ĚƵ с džĚdž͘ dĞƚĂƉŝ͕ ŝŶŝ ƚŝĚĂŬ ďŝƐĂ ŵĞŶŐŚĂƐŝůŬĂŶ ďĞŶƚƵŬ ŝŶƚĞŐƌĂůĚĞŶŐĂŶǀĂƌŝĂďĞůƵ͘:ĂĚŝ͕ŬŝƚĂŵĞŶLJĞůĞƐĂŝŬĂŶŝŶƚĞŐƌĂůŝŶŝĚĞŶŐĂŶĂůũĂďĂƌďŝĂƐĂ dx x x³
+ с³
x+x+xdx с³
x+x +xdx сx + x + x+C WĂĚĂ ƉĞƌŵĂƐĂůĂŚĂŶ Ěŝ ůŝŶŐŬƵŶŐĂŶ ŬĞŚŝĚƵƉĂŶ ƐĞŚĂƌŝͲŚĂƌŝ͕ /ŶƚĞŐƌĂů ũƵŐĂ ĚĂƉĂƚ ŵĞŶĞŶƚƵŬĂŶ ŬĞĐĞƉĂƚĂŶ ĚĂŶ ũĂƌĂŬ ƐƵĂƚƵ ŬĞƚŝŶŐŐŝĂŶ ďĞŶĚĂ LJĂŶŐ ďĞƌŐĞƌĂŬ ĚĂůĂŵ ƐƵĂƚƵ ƉĞŶŐĂƌƵŚ ŐƌĂǀŝƚĂƐŝ͕ ƐĞŚŝŶŐŐĂŬĞĐĞƉĂƚĂŶŶLJĂďĞƌƵďĂŚͲƵďĂŚƐĞďĂŐĂŝĨƵŶŐƐŝƚĞƌŚĂĚĂƉǁĂŬƚƵǀ;ƚͿ ŽŶƚŽŚϮ WĞƌĐĞƉĂƚĂŶ ŐƌĂǀŝƚĂƐŝ ďƵŵŝ ĂĚĂůĂŚ ϵ͘ϴ ŵͬĚĞƚϮ͘ ^ĞďƵĂŚ ďĞŶĚĂ ĚŝůĞŵƉĂƌ ǀĞƌƚŝŬĂů ŬĞ ĂƚĂƐ ĚĂƌŝ ƉĞƌŵƵŬĂĂŶ ďƵŵŝ ĚĞŶŐĂŶ ŬĞĐĞƉĂƚĂŶ ϭϱ ŵͬĚĞƚ͘ dĞŶƚƵŬĂŶ ŬĞĐĞƉĂƚĂŶ ĚĂŶ ƚŝŶŐŐŝŶLJĂ ϭ ĚĞƚŝŬ ŬĞŵƵĚŝĂŶ͘ WĞŶLJĞůĞƐĂŝĂŶ͗ <ŝƚĂĂƐƵŵƐŝŬĂŶŚĂŵďĂƚĂŶƵĚĂƌĂĚŝĂďĂŝŬĂŶƐĞŚŝŶŐŐĂŐĂLJĂͲŐĂLJĂLJĂŶŐďĞŬĞƌũĂŚĂŶLJĂŐĂLJĂƚĂƌŝŬďƵŵŝ͘ DŝƐĂůŬĂŶƚŝŶŐŐŝŶLJĂŚŬĞĂƌĂŚĂƚĂƐ͕ŵĂŬĂŶŝůĂŝŬĞĐĞƉĂƚĂŶŵƵůĂͲŵƵůĂ;ƉŽƐŝƚŝĨͿĂĚĂůĂŚƚƵƌƵŶĂŶĚĂƌŝŚ͕ LJĂŝƚƵ͗ dt dh v= dĞƚĂƉŝƉĞƌĐĞƉĂƚĂŶ;ƚƵƌƵŶĂŶĚĂƌŝŬĞĐĞƉĂƚĂŶͿ͕ dt dv a= ďĞƌŶŝůĂŝŶĞŐĂƚŝĨŬĂƌĞŶĂƚĂƌŝŬĂŶŐƌĂǀŝƚĂƐŝ͘:ĂĚŝ͕ ĚŝƉĞƌŽůĞŚ = dt dv Ͳϵ͘ϴ ĚǀсͲϵ͘ϴĚƚ v=³
−dtсͲϵ͘ϴƚн <ĂƌĞŶĂǀсϭϱƉĂĚĂƚсϬ͕ĚŝƉĞƌŽůĞŚ ǀ;ϬͿсϭϱсͲϵ͘ϴ;ϬͿнсϭϱ ǀ;ƚͿсͲϵ͘ϴƚнϭϱŬŝďĂƚŶLJĂ͕ dt dh v= dt dh сͲϵ͘ϴƚнϭϱ ĚŚс;Ͳϵ͘ϴƚнϭϱͿĚƚ Śс
³
−t+dt ŚсͲϰ͘ϵƚϮнϭϱƚн <ĞƚŝŶŐŐŝĂŶŚсϬƉĂĚĂƐĂĂƚƚсϬƐĞŚŝŶŐŐĂсϬ͘:ĂĚŝ͕ Ś;ƚͿсͲϰ͘ϵƚϮнϭϱƚ WĂĚĂƚсϭ͕ĚŝƉĞƌŽůĞŚ ǀсͲϵ͘ϴ;ϭͿнϭϱсϱ͘ϮŵͬĚĞƚ ŚсͲϰ͘ϵ;ϭͿϮнϭϱ;ϭͿсϭϬ͘ϭŵĞƚĞƌ WĞŶƵŐĂƐĂŶϭ͗dŝŶŐŐŝĚĂŶ<ĞĐĞƉĂƚĂŶĞŶĚĂDĞůĂLJĂŶŐ dƵũƵĂŶ DĞůĂůƵŝƉĞŶŐŽƉĞƌĂƐŝĂŶŝŶƚĞŐƌĂůďŝƐĂĚŝŬĞƚĂŚƵŝƚŝŶŐŐŝĚĂŶŬĞĐĞƉĂƚĂŶďĞŶĚĂŵĞůĂLJĂŶŐ >ĂŶŐŬĂŚŬĞŐŝĂƚĂŶ ϭ͘ DĞŶŐŐƵŶĂŬĂŶďŽůĂ͕ĚŝůĞŵƉĂƌďĞďĞƌĂƉĂŬĂůŝŬĞĂƚĂƐ Ϯ͘ DĞŶĐĂƚĂƚǁĂŬƚƵĚĂƌŝƐĂĂƚďŽůĂĚŝůĞŵƉĂƌ͕ŚŝŶŐŐĂƚŝďĂŬĞŵďĂůŝĚŝƉĞƌŵƵŬĂĂŶƚĂŶĂŚ ϯ͘ ĞŶŐĂŶŵĞŶŐŐƵŶĂŬĂŶƉĞƌƐĂŵĂĂŶŚсǀ;ƚͿĚƚĚĂŶǀ;ƚͿсŐĚƚ͕ĚŝŵĂŶĂŐсϵ͕ϴŵͬĚĞƚϮ ϰ͘ ,ŝƚƵŶŐŬĞĐĞƉĂƚĂŶĂǁĂůĚĂŶĂŬŚŝƌďĞŶĚĂ;ďŽůĂͿ͕ƐĞƌƚĂƚŝŶŐŐŝŵĂŬƐŝŵƵŵďĞŶĚĂŵĞůĂLJĂŶŐ /DWLKDQ6RDO 6HOHVDLNDQVHWLDSLQWHJUDOEHULNXW D ʹ݀ݔ E ݔ െ ͺ݀ݔ F ͷݔସ݀ݔ G െͻݔଶ݀ݔ H ݔିଷ݀ݔ 6HOHVDLNDQVHWLDSLQWHJUDOEHULNXW D ௫ାଷ௫య ݀ݔ E ௫ሺ௫௫మలାଷሻ݀ݔ F ଷ௫రିସ௫௫ యାଶ݀ݔ G ሺݔଷ ξݔሻ݀ݔ H ሺଵ ଶݔ ଶଶ ଷݔ െ ͳሻ݀ݔ 'LNHWDKXL݂ᇱሺݕሻ ൌ ሺݕଶ Ͷݕ ͵ሻଶǤ7HQWXNDQIXQJVLfሺݕሻMLND D f(2) E f(4) F f(3) G f(2) ,QWHJUDO7DN7HQWXIXQJVLWULJRQRPHWUL³
VLQxdx=−FRVx+C ax b C a dx b ax+ =− + +³
VLQ FRV³
FRVxdx=VLQx+C ax b C a dx b ax+ = + +³
FRV VLQ 8QWXNPHQJHUMDNDQLQWHJUDOIXQJVLWULJRQRPHWULDNDQGLJXQDNDQSHUVDPDDQSHUVDPDDQ VHEDJDLEHULNXWEHULNXWLQL VLQxFRVx VLQxFRVx VLQx VLQx FRVx±FRVx VLQ x FRVx FRVxFRVx FRV x &RQWRKVRDO³
x G[ x +C³
x G[³
x G[ x = x +C³
x − x+ dx= x − x +x+C³
xdx=³
− x dx= x− VLQx+C FRV C VLQ³
dx=x& /DWLKDQVRDO³
−xG[³
xx+G[ x x −³
G[³
FRVx+VLQxG[³
+ x G[³
FRVxG[³
− x x G[³
x dx G[³
x xG[³
VLQxG[ ,QWHJUDO7HUWHQWX 1LODL,QWHJUDOWHUWHQWXGLFDULPHODOXLWHRUHPDGDVDUNDONXOXVEHULNXW GHQJDQ fxDGDODKLQWHJUDQ\DLWXfx )¶x DEDGDODKEDWDVEDWDVSHQJLQWHJUDODQ >DE@DGDODKLQWHUYDOSHQJLQWHJUDODQ6HODLQ VLIDW LQWHJUDO WDN WHQWX \DQJ MXJD EHUODNX SDGD LQWHJUDO WHUWHQWX WHUGDSDW VLIDWVLIDW LQWHJUDOWHUWHQWX\DQJODLQVHEDJDLEHULNXW
³
=−³
a b b a dx x f dx x f³
=³
+³
c b b a c a dx x f dx x f dx x f³
b a x f dx[
Fx]
ba )E±)D³
= a a dx x f .HVLPHWULDQ :ŝŬĂĨĨƵŶŐƐŝŐĞŶĂƉ;ƐŝŵĞƚƌŝƚĞƌŚĂĚĂƉƐƵŵďƵLJͿ͕ŵĂŬĂ f x dx a a³
− сϮ f xdx a³
:ŝŬĂĨĨƵŶŐƐŝŐĂŶũŝů;ƐŝŵĞƚƌŝƚĞƌŚĂĚĂƉƚŝƚŝŬĂƐĂůͿ͕ŵĂŬĂ f x dx a a³
− сϬ -LND݂ሺݔሻ ͲGDODPLQWHUYDOܽ ݔ ܾǡPDND³
≥ b a dx x f -LND݂ሺݔሻ ͲGDODPLQWHUYDOܽ ݔ ܾǡPDND³
≤ b a dx x f ŝĨĞƌĞŶƐŝĂůƚĞƌŚĂĚĂƉďĂƚĂƐĂƚĂƐ͘DŝƐĂůŬĂŶĨŬŽŶƚŝŶƵƉĂĚĂƐĞůĂŶŐĂ͕ďĚĂŶdžǀĂƌŝĂďĞů ĚĂůĂŵĂ͕ď͘DĂŬĂ͕ dx d t dt f x f x a = » ¼ º « ¬ ª³
ƵŬƚŝ͘DŝƐĂůŬĂŶ&ĂŶƚŝƚƵƌƵŶĂŶĚĂƌŝĨ͕ŵĂŬĂ f t dt x a³
с&;džͿʹ&;ĂͿ dx d » ¼ º « ¬ ª³
f t dt x a с >Fx Fa@ dx d − с dx x dF ͲϬсĨ;džͿ ŽŶƚŽŚ͘dĞŶƚƵŬĂŶ͗;ĂͿ͘ dx d » ¼ º « ¬ ª +³
t dt x ;ďͿ͘ dx d » » ¼ º « « ¬ ª +³
t dt xWĞŶLJĞůĞƐĂŝĂŶ͘ Ă͘ ĂƚĂƐĂƚĂƐdžĚĂŶĚŝĨĞƌĞŶƐŝĂůƚĞƌŚĂĚĂƉdž͘^ĞĐĂƌĂůĂŶŐƐƵŶŐ dx d » ¼ º « ¬ ª +
³
t dt x сĨ;džͿсϯdžϮнϭ ď͘ ĂƚĂƐĂƚĂƐdžϮĚĂŶĚŝĨĞƌĞŶƐŝĂůƚĞƌŚĂĚĂƉdž͘<ŝƚĂŐƵŶĂŬĂŶĂƚƵƌĂŶƌĂŶƚĂŝĚĂŶŵĞŵŝƐĂůŬĂŶ ƵсdžϮ͘:ĂĚŝ͕ dx d » » ¼ º « « ¬ ª +³
t dt x с du d » ¼ º « ¬ ª +³
t dt u ͘ dx du с;ϯƵϮнϭͿ͘Ϯdžс;ϯ;džϮͿϮнϭͿ͘Ϯdž с;ϯdžϰнϭͿ͘Ϯdž &RQWRK 7HQWXNDQQLODLLQWHJUDOEHULNXWLQL D ݔଶହ ଶ݀ݔ E ሺ͵ݔଷ ଶ Ͷݔ ʹሻ݀ݔ F ͵ݔଶଷ ଶ݀ݔ ͵ݔହ ଶ݀ݔ ଷ -DZDE D ݔଶହ ଶ݀ݔ ൌ »¼ º «¬ ª + + x »¼ º «¬ ª x ଵଷ[
]
− ଵଷሺͳʹͷ െ ͺሻ ଵ ଷሺͳͳሻ &RQWRKVRDO³
− x G[ − »¼ º «¬ ª x »¼ º «¬ ª − − »¼ º «¬ ª ± x x +³
G[ »¼ º «¬ ª x + x »¼ º «¬ ª + − »¼ º «¬ ª + ଼ ଷ± /DWLKDQ6RDO³
− −x Gx x x +³
Gx³
− − x G[³
x G[ &DULODKQLODLSELOD³
− p x G[S! 7HNQLN3HQJLQWHJUDODQ ,QWHJUDO6XEVWLWXVL 3DGDEDJLDQLQLDNDQGLEDKDVWHNQLNLQWHJUDVL\DQJGLVHEXWPHWRGHVXEVWLWXVL.RQVHSGDVDU GDULPHWRGHLQLDGDODKGHQJDQPHQJXEDKLQWHJUDO\DQJNRPSOHNVPHQMDGLEHQWXN\DQJOHELK VHGHUKDQD %HQWXNXPXPLQWHJUDOVXEVWLWXVLDGDODKVHEDJDLEHULNXW නሾ݂ሺݑሻ݀ݑ ݀ݔሿ ݀ݔ ൌ ݂ሺݑሻ݀ݑ&RQWRKVRDO D 7HQWXNDQ
³
xx +dx E 7HQWXNDQ³
VLQxFRVxGx 3HQ\HOHVDLDQ D 0LVDONDQu x + PDND x dx du = DWDX x du dx = 6HKLQJJDGLSHUROHK³
xx +dx³
x du u x³
udu C u + C x + + E 0LVDONDQu VLQxPDND x dx du FRV = DWDX x du dx FRV = 6HKLQJJDGLSHUROHK³
VLQxFRVxGx³
XFRVxFRVdux³
udu C u + C x+ VLQ ,QWHJUDO3DUVLDO 7HNQLNLQWHJUDOSDUVLDOLQLGLJXQDNDQELODVXDWXLQWHJUDOWLGDNGDSDWGLVHOHVDLNDQGHQJDQ FDUDELDVDPDXSXQGHQJDQFDUDVXEVWLWXVL3ULQVLSGDVDULQWHJUDOSDUVLDODGDODKVHEDJDL EHULNXW SHQJLQWHJUDODQSDUVLDOLQWHJUDOWDNWHQWXSHQJLQWHJUDODQSDUVLDOLQWHJUDOWHUWHQWX &RQWRKVRDO 7HQWXNDQ³
xVLQxGx 3HQ\HOHVDLDQ 'HQJDQPHQJJXQDNDQUXPXV ݑ݀ݒ ൌ ݑǤ ݒ െ ݒ݀ݑ 0LVDOX x→du=xdx GY VLQxGx→v=³
VLQxdx FRVx VHKLQJJDGLSHUROHK³
xVLQxGx xFRVx³
−FRVxxdx xFRVx³
FRVxxdx xFRVxxVLQx³
VLQxdx xFRVxxVLQxFRVx& 6HODLQFDUDGLDWDVGDSDWSXODGLVHOHVDLNDQGHQJDQFDUDVHEDJDLEHULNXWXQWXNPHQHQWXNDQLQWHJUDO SDUVLDOEHQWXN³
udv\DQJWXUXQDQNHNGDULXDGDODKGDQLQWHJUDONHNGDULYVHODOXDGDݕ ൌ ݑǤ ݒ ՜ ݀ݕ ൌ ݀ݑǤ ݒ ݑǤ ݀ݒ න ݀ݕ ൌ න ݒ݀ݑ න ݑ݀ݒ ݕ ൌ න ݒ݀ݑ න ݑ݀ݒ ݑǤ ݒ ൌ න ݒ݀ݑ න ݑ݀ݒ න ݑ݀ݒ ൌ ݑǤ ݒ െ න ݒ ݀ݑ
³
XYƍ XY³
XƍY³
XGY XY³
YGX³
b a XYƍ[ ]
uvba³
b a XƍY³
b a XGY[ ]
uv ba³
b a YGX/DWLKDQ 6HOHVDLNDQLQWHJUDOEHULNXWGHQJDQWHNQLNVXEVWLWXVLDWDXLQWHJUDOSDUVLDO
³
x ⋅ xdx VLQ³
x x + dx³
x x −dx³
xVLQx +dx³
x+dx³
x⋅VLQxdx³
x x− dx³
−x x+dx³
−xFRVx+dx³
x⋅VLQxdx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οݔ ൌ ʹ െ Ͳ Ͷ ൌ Ͳǡͷ 'HQJDQGHPLNLDQNLWDDNDQPHQJJDPEDUSHUVHJLSDQMDQJSDGDJDPEDU\DQJGLDUVLUWHUVHEXWGHQJDQ PDVLQJPDVLQJ VDWXDQ OHEDU GDQ WLQJJLQ\D GLDPELO GDUL WLWLN XMXQJ SHUVHJL SDQMDQJ VHEHODK NDQDQ 0DULWHQWXNDQOXDVQ\DEHUGDVDUNDQJDPEDUGLDWDV3HUWDPDOHEDUWLDSSHUVHJLSDQMDQJDGDODK GDQNHPXGLDQWLQJJLQ\DGLDPELOGDULQLODLIXQJVLWLWLNXMXQJSHUVHJLSDQMDQJVHEHODKNDQDQ 6HKLQJJDSHUNLUDDQOXDVQ\DDGDODK fx x / f f f f GLSHUROHKMLNDSHQJKLWXQJDQEHUGDVDUNDQWLWLNXMXQJSHUVHJLSDQMDQJVHEHODKNDQDQOXDVGDHUDKQ\D DGDODKVDWXDQOXDV /DOXEDJDLPDQDMLNDSHQHQWXDQOXDVGDHUDKEHUGDVDUNDQWLWLNXMXQJSHUVHJLSDQMDQJVHEHODKNLUL" 2NHSHUKDWLNDQJDPEDUEHULNXW 6HKLQJJDSHUNLUDDQOXDVGDHUDKWHUVHEXWDGDODK / f f f f%LVDNLWDOLKDWSHUEHGDDQSHUNLUDDQOXDVGLDQWDUDNHGXDQ\D.DUHQDGHQJDQSHQHQWXDQOXDVGDHUDK EHUGDVDUNDQWLWLNXMXQJSHUVHJLSDQMDQJVHEHODKNLULDGDQ\DUXDQJNRVRQJ\DQJELVDNLWDOLKDWGL EDZDKJUDILN /DOXDGDVDWXODJLFDUD\DQJFXNXSDNXUDW\DLWXSHQHQWXDQWLQJJLSHUVHJLSDQMDQJ\DQJNLWDJDPEDU EHUGDVDUNDQWLWLNWHQJDK 3HUKDWLNDQJDPEDUEHULNXW 0DNDSHUNLUDDQOXDVGDHUDKWHUVHEXWDGDODK / f f f f .LWDVHNDUDQJPHPSHUROHKWLJDSHUNLUDDQOXDV\DQJEHUEHGD0DNDSHUNLUDDQOXDV\DQJPHQGHNDWL NHDNXUDWDQDGDODK / ହǡହାଷǡହାସǡଶହ ଷ ଵସǡଵଶହ ଷ
'DSDW NLWD OLKDW SHUNLUDDQ OXDV PHQJJXQDNDQ DWXUDQ WLWLN WHQJDK OHELK PHQGHNDWL NHDNXUDWDQ GDULSDGDGXDFDUD\DQJODLQ
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Sumbu putarnya vertikal,
ܸ ൌ ߨ නሺ݂ሺݔሻሻଶ݀ݔ ܸ ൌ ߨ නሺ݂ሺݕሻሻଶ݀ݕ
Saran Referensi
ʹͲͳ͵ȀȀȀǡǡʹͲͳͶ ǤƬǡǤǤǤǤǡǡ ʹͲͳKriteria Pindah/Lulus Modul
Ǥ ͳǤ ǡ ǡ ʹǤǡ ǡͷΨ ͵Ǥǡ ǡͷΨ ǣ ͳǤǡ ǡͷΨ ʹǤͷΨ
Kunci Jawaban : /DWLKDQ6RDO 6HOHVDLNDQVHWLDSLQWHJUDOEHULNXW ܽǤ න ʹ݀ݔ ൌ ʹݔ ܥ ܾǤ න ݔ െ ͺ݀ݔ ൌ ʹݔ ଶെ ͺݔ ܥ ܿǤ න ͷݔସ݀ݔ ൌ ͷ ͷݔ ହ ܥ ൌ ݔହ ܥ ݀Ǥ න െͻݔଶ݀ݔ ൌ െͻ ͵ ݔ ଷ ܥ ൌ െ͵ݔଷ ܥ ݁Ǥ න ݔିଷ݀ݔ ൌ ͳ െʹݔ ିଶ ܥ 6HOHVDLNDQVHWLDSLQWHJUDOEHULNXW ܽǤ නݔ ͵ ݔଷ ݀ݔ ൌ න ݔ ݔଷ݀ݔ න ͵ ݔଷ݀ݔ ൌ න ͳ ݔଶ݀ݔ න ͵ ݔଷ݀ݔ ൌ න ݔିଶ݀ݔ න ͵ݔିଷ݀ݔ ଵ ିଵݔ ିଵ ଷ ିଶݔ ିଶ ܥ െݔିଵ ଷ ିଶݔ ିଶ ܥ ܾǤ නݔሺݔ ଶ ͵ሻ ݔ ݀ݔ ൌ න ݔଷ ͵ݔ ݔ ݀ݔ ൌ න ͳ ݔ݀ݔ න ͵ ݔହ݀ݔ ൌ න ݔି݀ݔ න ͵ݔିହ݀ݔ ൌ ͳ െͷݔ ିହ ͵ െͶݔ ିସ ܥ ܿǤ න͵ݔ ସ െ Ͷݔଷ ʹ ݔ ݀ݔ ൌ න ͵ݔ ଷെ Ͷݔଶ ʹݔିଵ݀ݔ ൌ න ͵ݔଷ݀ݔ െ න Ͷݔଶ݀ݔ න ʹݔିଵ݀ݔ ൌ ͵ Ͷݔ ସെͶ ͵ݔ ଷ Ͳ ܥ ݀Ǥ නሺݔଷ ξݔሻ݀ݔ ൌ න ൬ݔଷ ݔଵଶ൰ ݀ݔ ൌ න ݔଷ݀ݔ න ݔଵଶ݀ݔ ൌ ͳ Ͷݔ ସ ͳ ͵ ʹ ݔଷଶ ܥ ൌ ͳ Ͷݔ ସ ʹ ͵ݔ ଷ ଶ ܥ ݁Ǥ නሺͳ ʹݔ ଶʹ ͵ݔ െ ͳሻ݀ݔ ൌ න ͳ ʹݔ ଶ݀ݔ නʹ ͵ݔ݀ݔ െ න ݀ݔ ൌ ͳ ʹ ͵ ݔଷ ʹ ͵ ʹ ݔଶെ ݔ ܥ ൌ ͵ ʹݔ ଷʹ ͵ݔ ଶെ ݔ ܥ 'LNHWDKXL݂ᇱሺݕሻ ൌ ሺݕଶ Ͷݕ ͵ሻଶǤ7HQWXNDQIXQJVLfሺݕሻMLND න ݂Ԣሺݕሻ ݀ݕ ൌ නሺݕଶ Ͷݕ ͵ሻଶ݀ݕ ൌ න ݕସ Ͷݕଶ ͻ݀ݕ ൌ ͳ ͷݕ ହͶ ͵ݕ ଷ ݕ ܥ f(2) ൌ ଵ ହሺʹሻ ହସ ଷሺʹሻ ଷ ʹ ܥ ൌ ͷͲ ൌ ଵ ହሺ͵ʹሻ ସ ଷሺͺሻ ʹ ܥ ൌ ͷͲ ൌ ͵ʹ ͷ ͵ʹ ͵ ʹ ܥ ൌ ͷͲ ൌ ͻ ͳͷ ͳͲ ͳͷ ͵Ͳ ͳͷ ܥ ൌ ͷͲ ൌ ʹͺ ͳͷ ܥ ൌ ͷͲ ܥ ൌ ͷͲ ͳͷ െ ʹͺ ͳͷ ܥ ൌ ͶͶ ͳͷ ܬܽ݀݅ǣͳ ͷݕ ହͶ ͵ݕ ଷ ݕ ͶͶ ͳͷ f(4) ൌ ଵ ହሺͶሻ ହସ ଷሺͶሻ ଷ Ͷ ܥ ൌ ͳͲͷ ൌ ଵ ହሺͳͲʹͶሻ ସ ଷሺͶሻ Ͷ ܥ ൌ ͳͲͷ ൌ ͳͲʹͶ ͷ ʹͷ ͵ Ͷ ܥ ൌ ͳͲͷ ൌ ͵Ͳʹ ͳͷ ͳʹͺͲ ͳͷ Ͳ ͳͷ ܥ ൌ ͷͲ
ൌ ͶͶͳʹ ͳͷ ܥ ൌ ͳͲͷ ܥ ൌ ͳͷͷ ͳͷ െ ͶͶͳʹ ͳͷ ܥ ൌ െʹͺ͵ ͳͷ ܬܽ݀݅ǣͳ ͷݕ ହͶ ͵ݕ ଷ ݕ ʹͺ͵ ͳͷ f(3) ൌ ଵ ହሺ͵ሻ ହସ ଷሺ͵ሻ ଷ ͵ ܥ ൌ ͳ͵ͷ ൌ ଵହሺʹͶ͵ሻ ସ ଷሺʹሻ ʹ ܥ ൌ ͳ͵ͷ ൌ ʹͶ͵ ͷ ͳͲͺ ͵ ʹ ܥ ൌ ͳ͵ͷ ൌ ʹͶ͵ ͷ ͵ ʹ ܥ ൌ ͳ͵ͷ ൌ ʹͶ͵ ͷ ͵ͺ ܥ ൌ ͳ͵ͷ ൌ ʹͶ͵ ͷ ͳͻͲ ͷ ܥ ൌ ͳ͵ͷ ൌ Ͷ͵͵ ͷ ܥ ൌ ͳ͵ͷ ܥ ൌ ͷ ͷ െ Ͷ͵͵ ͷ ܥ ൌ ʹͶʹ ͷ ܬܽ݀݅ǣͳ ͷݕ ହͶ ͵ݕ ଷ ݕ ʹͶʹ ͷ f(2) ൌ ଵ ହሺʹሻ ହସ ଷሺʹሻ ଷ ʹ ܥ ൌ ͻͲ ൌ ଵହሺ͵ʹሻ ସ ଷሺͺሻ ʹ ܥ ൌ ͻͲ ൌ ͵ʹ ͷ ͵ʹ ͵ ʹ ܥ ൌ ͻͲ ൌ ͻ ͳͷ ͳͲ ͳͷ ͵Ͳ ͳͷ ܥ ൌ ͻͲ ൌ ʹͺ ͳͷ ܥ ൌ ͻͲ ܥ ൌ ͳ͵ͷͲ ͳͷ െ ʹͺ ͳͷ ܥ ൌ ͳͲͶ ͳͷ ܬܽ݀݅ǣͳ ͷݕ ହͶ ͵ݕ ଷ ݕ ͳͲͶ ͳͷ /DWLKDQ6RDO
³
− −x Gx ቀݔ െିଵଵ ଵଷݔଷቁ ݀ݔ ൌ − »¼ º «¬ ªx + x − »¼ º «¬ ª + »¼ º «¬ ª − + − − »¼ º «¬ ª + = »¼ º «¬ ª − + » − ¼ º « ¬ ª + »¼ º «¬ ª − + ସ ଷ ଷ ଷെ ଵ ଷ ൌ ʹ x x +³
Gx ൬ݔభమ ଵ ௫భమ ൰ ݀ݔ ସ ቀݔ భ మ ݔି భ మቁ ݀ݔ ସ » = ¼ º « ¬ ª + − x x ቀሺͶሻభమ ሺͶሻି భ మቁ െ ቀሺͲሻభమ ሺͲሻି భ మቁ ൌ ቀξͶ ଵ ξସቁ െ Ͳ ൌ ቀʹ ଵ ଶቁ ൌ ʹ ଵ ଶ³
− − x G[ ቀʹݔ െଵ ଶݔ ଶቁ ݀ݔ ൌ ିଶ »¼ = º «¬ ª − − x x ቀሺͲሻభమ ሺͲሻି భ మቁ െቀሺെʹሻ భ మ ሺെʹሻିభమቁ ൌ Ͳ െ ሺെʹሻ ൌ ͳ³
x G[ ݔ ିభమ݀ݔ ସ ଵ భ మ ݔభమ݀ݔ ସ ʹݔ భ మ݀ݔ ସ » = ¼ º « ¬ ª x ቀʹሺͶሻభమെ ʹሺͲሻ భ మቁ ൫ʹሺξͶ൯ [&DULODKQLODLSELOD
³
− p x G[S!³
− p x = »¼ º «¬ ªx− x p ቀ െଵ ଶ ଶቁ െ ቀͲ െଵ ଶͲ ଶቁ ൌ െଵ ଶ ଶെ Ͳ ൌ ʹ െ ଶ ൌ ሺʹ െ ሻ p = DWDXp /DWLKDQ6RDO 7HQWXNDQ/XDVGDHUDK\DQJGLDUVLUEHULNXW D 3DUDEROD\ [GDQJDULV\ [ \ \PDND ݔଶ ൌ ݔ ݔଶെ ݔ ൌ Ͳ ݔሺݔ െ ͳሻ ൌ Ͳ ݔ ൌ Ͳܽݐܽݑݔ ൌ ͳ %DWDVLQWHJUDOVDPSDL ሺݔଵ ଶെ ݔሻ݀ݔ »¼ º «¬ ª x + x ଵ ଷሺͳሻ ଷଵ ଶሺͳሻ ଶሻ െ ሺଵ ଷሺͲሻ ଷଵ ଶሺͲሻ ଶሻ ଵ ଷ ଵ ଶ ଶ ଷ ହ VDWXDQOXDV E \ [GDQ\ [ \ \PDND [ [ [±[± [± [ GDQGLEDWDVLROHKJDULV[ %DWDVLQWHJUDOQ\DVDPSDL ሺʹݔ െ ݔ െ ͳሻ݀ݔଵଷ »¼ º «¬ ªx + x −x ͵ሻଶଵଶሺ͵ሻଶെ ሺ͵ሻሻ െ ሺሺͳሻଶଵଶሺͳሻଶ െ ሺͳሻሻ ଽ ଶെ ͵ሻ െ ሺͳ ଵ ଶെ ͳሻ െ͵ െ ͳ ͳ ଽଶെଵଶሻ ଼ଶሻ VDWXDQOXDV /XDVGDHUDK\DQJGLEDWDVLNXUYDI[ െݔଶ Ͷݔ ͳʹGDQJ[ ݔଶെ ʹݔ െ ͺDGDODK I[ െݔଶ Ͷݔ ͳʹ J[ ݔଶെ ʹݔ െ ͺ 0HQFDULWLWLNSRWRQJNXUYD I[ J[ െݔଶ Ͷݔ ͳʹ ݔଶെ ʹݔ െ ͺ െݔଶെ ݔଶ Ͷݔ ʹݔ ͳʹ ͺ ൌ Ͳ െʹݔଶ ݔ ʹͲ ൌ Ͳ ʹݔଶെ ݔ െ ʹͲ ൌ Ͳ ሺʹݔ Ͷሻሺݔ െ ͷሻ ൌ Ͳ ʹݔ Ͷ ൌ Ͳܽݐܽݑݔ െ ͷ ൌ Ͳ ʹݔ ൌ െͶܽݐܽݑݔ ൌ ͷ ݔ ൌ െʹܽݐܽݑݔ ൌ ͷ /XDVGDHUDKGDULݔ ൌ െʹKLQJJDݔ ൌ ͷ / ൫݂ሺݔሻ െ ݃ሺݔሻ൯݀ݔିଶହ ሺെݔହ ଶ Ͷݔ ͳʹ െ ሺݔଶെ ʹݔ െ ͺሻሻ݀ݔ ିଶ ሺെʹݔହ ଶ ݔ ʹͲሻ݀ݔ ିଶ − »¼ º «¬ ª− x + x + x − »¼ º «¬ ª− x + x + x − »¼ º «¬ ª− + + »¼ º «¬ ª− − + − + − ቀെଶ ଷሺͳʹͷሻ ͵ሺʹͷሻ ͳͲͲቁ െ ቀെ ଶ ଷሺെͺሻ ͵ሺͶሻ െ ͶͲቁ ቀെଶହ ଷ ͷ ͳͲͲቁ െ ቀ ଵ ଷ ͳʹ െ ͶͲቁ ቀെଶହ ଷ ଶଶହ ଷ ଵ ଷ ቁ െ ቀ ଵ ଷ ଷ ଷ െ ଵଶ ଷ ቁ ቀଶହ ଷ െ ሺെ ଼ ଷሻቁ ଶହ ଷ ଼ ଷ ଷସଷ ଷ ଵ ଷ -DGLOXDVGDHUDKWHUVHEXWDGDODKଵ ଷVDWXDQOXDV͵Ǥ ݕ ൌ ͺ െ ݔଶݕ ൌ ʹݔǤǤǤǤǤ 3HQ\HOHVDLDQ %DWDVLQWHJUDO ݕଵ ൌ ݕଶ ͺ െ ݔଶ ൌ ʹݔ ͺ െ ݔଶെ ʹݔ ൌ Ͳ ݔଶ ʹݔ െ ͺ ൌ Ͳ ሺݔ െ ʹሻሺݔ Ͷሻ ൌ Ͳ ݔ ൌ ʹܽݐܽݑݔ ൌ െͶ ሺͺ െ ݔିସଶ ଶെ ʹݔሻ݀ݔൌ − »¼ º «¬ ª x− x −x − »¼ º «¬ ª − − »¼ º «¬ ª − − − − − ቀͳ െ଼ ଷെ Ͷቁ െ ቀെ͵ʹ െ ሺെ ସ ଷሻ െ ሺͳሻቁ ቀͳ െ଼ ଷെ Ͷ ͵ʹ െ ସ ଷ ͳቁ ͳ െ ʹͶ VDWXDQOXDV ͶǤ ݕ ൌ Ͷ െ ݔଶݕ ൌ െݔ ʹͲ ݔ ͵ǤǤǤǤ ǣ ݕ ൌ Ͷ െ ݔଶ ݕ ൌ െݔ ʹ ǣ ݕଵ ൌ ݕଶ Ͷ െ ݔଶ ൌ െݔ ʹ Ͷ െ ݔଶ ݔ െ ʹ ൌ Ͳ െݔଶ ݔ Ͷ െ ʹ ൌ Ͳ ݔଶ െ ݔ െ ʹ ൌ Ͳ ሺݔ െ ʹሻሺݔ ͳሻαͲ ݔ ൌ ʹܽݐܽݑݔ ൌ െͳ ݔ ൌ Ͳݏܽ݉ܽ݅ݔ ൌ ͵ǡ ݐ݁ݎ݀ܽܽݐ݀ݑܾܽܽ݃݅ܽ݊݀ܽ݁ݎ݄ܽ ͳǡαͲαʹ ʹǡαʹα͵ ͳα ሺͶ െ ݔଶ ଶሻ െ ሺെݔ ʹሻ݀ݔ ʹα ሺെݔ ʹሻ െଶଷ ሺͶ െ ݔଶሻ݀ݔ αͳΪʹ ͳα ሺͶ െ ݔଶ ଶሻ െ ሺെݔ ʹሻ݀ݔ α
[
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−x +x + α[
]
+ + −x x α »¼ º «¬ ª− x + x + x αቀെଵ ଷሺʹሻ ଷଵ ଶሺʹሻ ଶ ʹሺʹሻቁ െ ቀെଵ ଷሺͲሻ ଷଵ ଶሺͲሻ ଶ ʹሺͲሻቁ αቀെ଼ ଷ ସ ଶ Ͷቁ െ Ͳ αቀെ଼ ଷ ʹ Ͷቁ െ Ͳ αെ
଼ ଷ
ଵ଼ ଷ αଵ ଷ ʹα ሺെݔ ʹሻ െଶଷ ሺͶ െ ݔଶሻ݀ݔ ൌ[
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x x+ − + − α[
]
− −x x α »¼ º «¬ ª x − x − x αቀଵଷሺ͵ሻଷെଵ ଶሺ͵ሻ ଶ െ ʹሺ͵ሻቁ െ ቀଵ ଷሺʹሻ ଷെଵ ଶሺʹሻ ଶെ ʹሺʹሻቁ αቀଶଷ െଶଽെ ቁ െ ቀ଼ଷെସଶ Ͷቁ αቀଶ ଷ െ ଼ ଷെ ଽ ଶ ସ ଶെ Ͷቁ αቀ
ଵଽଷെ
ହଶെ ʹቁ
αቀ
͵ͺെ
ͳͷ െ ͳʹ ቁ
α ଷ଼ െ
ଶ α
ଵଵͳΪʹαଵ ଷ