2FI 2 sin nx dx cos nx dx =0, where n integer. %3D !! 0.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section: Chapter Questions
Problem 22RE
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1-{ sin nx dx = | cos nx dx =0, where n integer.
211
211
2- sin mx sin nx dx = 2 [cos(m-n)x- cos(m+n)x]dx = 0.
Transcribed Image Text:1-{ sin nx dx = | cos nx dx =0, where n integer. 211 211 2- sin mx sin nx dx = 2 [cos(m-n)x- cos(m+n)x]dx = 0.
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