MCQ
$ tan^{-1}\sqrt{3} - cot^{-1}(-\sqrt{3}) = $ _______
- A$ \pi $
- ✓$ -\frac{\pi}{2} $
- C0
- D$ 2\sqrt{3} $
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$f(x) = \left\{ {\begin{array}{*{20}{c}}
{{x^2} + 2mx - 1\,,}&{x \leq 0}\\
{mx - 1\,\,\,\,\,\,\,\,\,\,\,\,\,,}&{x > 0}
\end{array}} \right.$
જો $f (x)$ એક-એક વિધેય હોય તો $'m'$ ની કિમતોનો ગણ મેળવો.