MCQ
જો $\cos (2{\sin ^{ - 1}}x) = \frac{1}{9}$ તો $x = $
- Aમાત્ર $ \frac{2}{3}$
- Bમાત્ર $ \frac{-2}{3}$
- ✓$ \frac{2}{3}, \frac{-2}{3}$
- D$ \frac{2}{3}$ અથવા $ \frac{-2}{3} $ પૈકી એકપણ નહીં
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$\,P[B/(A \cup B)^c] = .....$