1.

Write the value of int(cosx-sinx)/(sinx+cosx)dx.

Answer»

SOLUTION :`INT(cosx-sinx)/(sinx+cosx)dx=int(DT)/t` where SIN x+cos x=t `RARR(cosx-sinx)`dx=dt=In | t| +C=In |sin x+cos x|+C


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