Let f:(−1,1)→B, be a function defined by f(x)=tan−12x1−x2, the – InterviewSolution

1.	Let f:(−1,1)→B, be a function defined by f(x)=tan−12x1−x2, then f is both one - one and onto when B is the interval
Answer» Let $f : (- 1, 1) \to B$ , be a function defined by $f (x) = t a n^{- 1} \frac{2 x}{1 - x^{2}}$ , then f is both one - one and onto when B is the interval

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