MCQ
વિધેય $f(x)=\sin ^{-1}\left(\frac{x^{2}-3 x+2}{x^{2}+2 x+7}\right)$ નો પ્રદેશ મેળવો.
- A$[1, \infty)$
- B$(-1,2]$
- ✓$[-1, \infty)$
- D$(-\infty, 2]$
$\frac{x^{2}-3 x+2}{x^{2}+2 x+7} \geq-1$ and $\frac{x^{2}-3 x+2}{x^{2}+2 x+7} \leq 1$
$2 x^{2}-x+9 \geq 0$ and $5 x \geq-5 \Rightarrow x \geq-1$ $x \in R$
Hence Domain $x \in[-1, \infty)$
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