1. (a) Use integration by parts to verify the reduction formula Scos" xdx = cos"- xsin x n-1 +- Scos"-² xdx n n Use this result to derive the Wallis's cosine formulas (i) If n is odd (n23), then 4 6 =| 3 | cos" xdx (ii) If n is even (n> 2),then a/2 -1) T 3 | cos" xdx =| 2) 4 6 2 n
1. (a) Use integration by parts to verify the reduction formula Scos" xdx = cos"- xsin x n-1 +- Scos"-² xdx n n Use this result to derive the Wallis's cosine formulas (i) If n is odd (n23), then 4 6 =| 3 | cos" xdx (ii) If n is even (n> 2),then a/2 -1) T 3 | cos" xdx =| 2) 4 6 2 n
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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