MCQ
${\sin ^{ - 1}}\frac{{\sqrt x }}{{\sqrt {x + a} }} =\ . .... ..$
- A${\cos ^{ - 1}}\sqrt {\frac{x}{a}} $
- B${\rm{cose}}{{\rm{c}}^{ - 1}}\sqrt {\frac{x}{a}} $
- ✓${\tan ^{ - 1}}\sqrt {\frac{x}{a}} $
- Dએકપણ નહીં.
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