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If f(x)=sqrt(x+2sqrt(2x-4))+sqrt(x-2sqrt...

If `f(x)=sqrt(x+2sqrt(2x-4))+sqrt(x-2sqrt(2x-4))` then

A

f is differentiable at all points of its domain except x = 4

B

f is differentiable on `(2,oo)`

C

f is differentiable on `(-oo,oo)`

D

f'(x) = 0 for all `x in [2,6)`

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The correct Answer is:
A
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MCGROW HILL PUBLICATION-DIFFERENTIABILITY AND DIFFERENTIATION -EXAMPLES (LEVEL 2) Single Correct Answer Type Questions
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