Iklan

Pertanyaan

Diketahui dan dan . Nilai k = ....

Diketahui begin mathsize 14px style f open parentheses x close parentheses equals cos squared invisible function application 2 x end style dan begin mathsize 14px style g open parentheses x close parentheses equals cos squared invisible function application 2 x end style dan begin mathsize 14px style integral subscript 0 superscript k open parentheses f open parentheses x close parentheses minus g open parentheses x close parentheses close parentheses d x equals 1 fourth end style. Nilai k = ....

  1. begin mathsize 14px style 2 pi end style 

  2. size 14px pi 

  3. size 14px 1 over size 14px 2 size 14px pi 

  4. size 14px 1 over size 14px 3 size 14px pi 

  5. size 14px 1 over size 14px 8 size 14px pi 

Ikuti Tryout SNBT & Menangkan E-Wallet 100rb

Habis dalam

01

:

23

:

35

:

25

Klaim

Iklan

N. Rahayu

Master Teacher

Mahasiswa/Alumni Universitas Negeri Jakarta

Jawaban terverifikasi

Pembahasan

Ingat sudut rangkap berikut ini : Jika diketahui : Maka : Karena diketahui pula bahwa , maka

Ingat sudut rangkap berikut ini :

begin mathsize 14px style cos squared invisible function application 2 x minus sin squared invisible function application 2 x equals sin invisible function application 4 x end style

Jika diketahui :

begin mathsize 14px style f open parentheses x close parentheses equals cos squared invisible function application 2 x end style 
begin mathsize 14px style g open parentheses x close parentheses equals cos squared invisible function application 2 x end style

Maka :

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell integral from 0 to k of f open parentheses x close parentheses minus g open parentheses x close parentheses d x end cell equals cell integral from 0 to k of cos squared invisible function application 2 x minus sin squared invisible function application 2 x d x end cell row blank equals cell integral from 0 to k of cos invisible function application 4 x d x end cell row blank equals cell open 1 fourth sin invisible function application 4 x close square brackets subscript 0 superscript k end cell row blank equals cell 1 fourth sin invisible function application 4 k plus 1 fourth sin invisible function application 0 end cell row blank equals cell 1 fourth sin invisible function application 4 k end cell end table end style

Karena diketahui pula bahwa begin mathsize 14px style integral from 0 to k of left parenthesis f open parentheses x close parentheses minus g open parentheses x close parentheses right parenthesis blank d x equals 1 fourth end style, maka

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell 1 fourth sin invisible function application 4 k end cell equals cell 1 fourth end cell row cell sin invisible function application 4 k end cell equals 1 row cell sin invisible function application 4 k end cell equals cell sin invisible function application open parentheses pi over 2 close parentheses end cell row cell 4 k end cell equals cell pi over 2 end cell row k equals cell pi over 8 end cell end table end style 

Perdalam pemahamanmu bersama Master Teacher
di sesi Live Teaching, GRATIS!

1

Iklan

Pertanyaan serupa

Diketahui dan maka ....

3

0.0

Jawaban terverifikasi

RUANGGURU HQ

Jl. Dr. Saharjo No.161, Manggarai Selatan, Tebet, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12860

Coba GRATIS Aplikasi Roboguru

Coba GRATIS Aplikasi Ruangguru

Download di Google PlayDownload di AppstoreDownload di App Gallery

Produk Ruangguru

Hubungi Kami

Ruangguru WhatsApp

+62 815-7441-0000

Email info@ruangguru.com

[email protected]

Contact 02140008000

02140008000

Ikuti Kami

©2025 Ruangguru. All Rights Reserved PT. Ruang Raya Indonesia