Evaluate the following integrals:
We know d(sinx) = cosx, and cot can be written in terms of cos and sin
∴ 
∴ The given equation can be written as
⇒ 
⇒ 
Now assume sinx = t
d(sinx) = dt
cosx dx = dt
Substitute values of t and dt in above equation
⇒ 
⇒ 
⇒ 
⇒
⇒ 
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