KEAM 2019 Math Paper

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Question : 54 of 121

Marks: +1, -0

If f(x)=[tan2x] (where [.] denotes the greatest integer function), then

f(x) is differentiable at x=0
f(0)=1
f(x) is not continuous at x=0
lim
x→0
f(x) does not exist
None of the above

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