I substituted cotx= t in this question but I m still not getting the solution
I substituted cotx= t in this question but I m still not getting the solution
Myra , 6 Years ago
Grade 11
Integral Calculus> I substituted cotx= t in this question bu...
1 AnswersMyra
cotx = t
-cosec^2(x) dx =dt
dx = -dt/cosec^2(x)=-dt(sin^2x)
Substitute
∫ 1 dx = ∫-sinx dt
———— ——————
sinx√sinx√cosx √sinx√cosx
= -∫ √tanx dx
=-∫1/√t dt = -2 √cotx +c
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