We need to determine the integral of (cos x)^7 * sin x.
Int [(cos x)^7 * sin x dx]
let cos x = u => - du = sin x dx
=> Int [ -u^7 du]
=> -u^8 / 8 + C
substitute u = cos x
=> - (cos...
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We need to determine the integral of (cos x)^7 * sin x.
Int [(cos x)^7 * sin x dx]
let cos x = u => - du = sin x dx
=> Int [ -u^7 du]
=> -u^8 / 8 + C
substitute u = cos x
=> - (cos x)^8 / 8 + C
The required integral is - (cos x)^8 / 8 + C