Evaluate

To solve this type of solution ,we are going to substitute the value of sinx and cosx in terms of tan(x/2)





In this type of equations we apply substitution method so that equation may be solve in simple way


Let



Put these terms in above equation,we get



Let us now again apply the substitution method in above equation


Let t-2 = k


-2.t-3dt = dk


Substitute these terms in above equation gives-






Now put the value of t, t=tan(x/2) in above equation gives us the finally solution



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