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Which of following functions have the sa...

Which of following functions have the same graph? (a)`f(x)=log_(e)e^(x)` (b)`h(x)=cot^(-1)(cotx)` (c)`k(x)=lim_(n rarr infty)(2abs(x))/pi tan^(-1)(nx)`

A

`f(x)=log_(e)e^(x)`

B

`g(x)=abs(x)sgnx`

C

`h(x)=cot^(-1)(cotx)`

D

`k(x)=lim_(n rarr infty)(2abs(x))/pi tan^(-1)(nx)`

Text Solution

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The correct Answer is:
A, B, D
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