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let f(x)=|[cosx,x,1],[2sinx,x^2,2x],[tan...

let `f(x)=|[cosx,x,1],[2sinx,x^2,2x],[tanx,x,1]|`. then `lim_(x->0)(f'(x))/x=`

A

does not exist

B

exists and is equal to -2

C

exists and is equal to 0

D

exists and is equal to 2

Text Solution

Verified by Experts

The correct Answer is:
D
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