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N i l a i space integral subscript 0 superscript pi over 2 end superscript cos squared space x d x equals...

  1. pi

  2. fraction numerator 3 pi over denominator 2 end fraction

  3. pi over 2

  4. fraction numerator 3 pi over denominator 4 end fraction

  5. pi over 4

F. Pratama

Master Teacher

Mahasiswa/Alumni Universitas Putra Indonesia YPTK Padang

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Pembahasan

I n g a t space r u m u s  c o s 2 x equals 2 c o s squared x minus 1 rightwards double arrow c o s squared x equals 1 half left parenthesis c o s 2 x plus 1 right parenthesis    P e r h a t i k a n space b e n t u k space p a d a space s o a l  integral subscript 0 superscript straight pi over 2 end superscript cos squared x space d x    B e n t u k space t e r s e b u t space d a p a t space d i u b a h space m e n j a d i  integral subscript 0 superscript straight pi over 2 end superscript 1 half left parenthesis cos space 2 x plus 1 right parenthesis space d x  equals right enclose 1 fourth space sin space 2 x space plus thin space 1 half x end enclose subscript 0 superscript straight pi over 2 end superscript  equals open parentheses 1 fourth sin space straight pi space plus space 1 fourth space straight pi close parentheses minus 0  equals 1 fourth straight pi

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