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Pls help me to solve this question......................................???!!???!????? 
one year ago

Answers : (1)

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Aditya Gupta
1730 Points 
							
put theta = x
note that cosx+sinx/cosx-sinx= tan(x+pi/4)
now, put x+pi/4=y
so integral becomes sin2ylntanydy
now integrate by parts taking first function u as lntany and second function v as sn2y
one year ago
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