Question: Derive the reduction formula I cos cos x dx : = 1 - n n-1 += fcos- n cos-xsin x + cos-2 x dx

Derive the reduction formula

I cos cos" x dx : = 1 - n n-1 +"= fcos- n cos"- x sin x + cos"-2 x dx

I cos cos" x dx : = 1 - n n-1 +"= fcos- n cos-xsin x + cos"-2 x dx

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