Question

Q8.Check whether cos x.cos 2x.cos 4x.cos 8x= sin 16x/ 16 sin x or not.​

Answer 1

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Answer:

jfz

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oysgixsjtsgdjfzfzjzrJfJfZzfjzkgxktsotsoysoydoyxdoydkyszsjgjskgjgdkgskgs

Step-by-step explanation:

oysgixsjtsgdjfzfzjzrJfJfZzfjzkgxktsotsoysoydoyxdoydkyszsjgjskgjgdkgskggxgjlxgkxxxkgxkcjvcjhjcjcici

Answer 2

Step-by-step explanation:

cos π/5 ± cos 3π/5 =1/2

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