1.

Which of the following pair of functions have the same graph ?

Answer»

`f(x) ln [1+{x}]` and `g(x) = ln(1+[{x}])`,
`f(x) = 1/(1+tan^(2)x) + (1)(1+cot^(2)x)` and `g(x) = 2 SIN^(2)x + COS2X`
`f(x) = 2^(sgn)(x^(2)+3x+3)` and `g(x) = 2sgn(x^(2)+3x+3)`
`f(x) = (sgnx)/(sgnx)` and `g(x) = (|x|)/(|x|)`

Answer :A::C::D


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