Differentiate each of the following w.r.t x:
To find: Value of 
The formula used: (i) 
(ii) 
We have, 
⇒ Putting x = cosθ
θ = cos-1x … (i)
Putting x = cosθ in the equation
⇒ 
⇒ 
⇒ 
⇒ 
[From (i)]
Ans) 
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