Author name: balu

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test

$$ f(x)=\sin ^{-1}\left(\log _{2}\left(\frac{x^{2}}{2}\right)\right) \in \mathbf{R} \Leftrightarrow-1 \leq \log _{2}\left(\frac{x^{2}}{2}\right) \leq 1 \Leftrightarrow \frac{1}{2} \leq \frac{x^{2}}{2} \leq 2 \Leftrightarrow 1 […]

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