cn't 2nd ques be done using properties of integrals anyway?
Q1)∫0pi/4 sin x+cos x/9+16sin 2x
Q2)∫0 pi/2 sin2x tan-1(sinx)dx
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4 Answers
Hari Shankar
·2009-01-18 21:31:17
For 1, put sin x - cos x = t. So dt = cos x + sin x
t2 = 1 - sin 2x, so replace sin 2x by 1 - t2