Question

reduction formula for trigonometric function

Answer 1

Hey
(1) Odd > 0 Any Substitution u = cos x, du = −sin xdx. Use sin2 x = 1 − cos2 x to transform sine to cosine. (2) Any Odd > 0 Substitution u = sin x, du = cos xdx. ... Then use reduction formula ∫ cosn xdx. (4) Any Even ≥ 0 Use cos2 x = 1 − sin2 x to transform all cosine to sine. Then use reduction formula ∫ sinn xdx.
Hope this helps you mate..

Answer 2

Reduction formula (EHMBHJ) ..... Use reduction formulae to write the trigonometric functions values in terms of acute angles and theta