$\frac{{\sqrt {1 + \sin x} + \sqrt {1 - \sin x} }}{{\sqrt {1 + \sin x} - \sqrt {1 - \sin x} }} = $ (when $x$ lies in $II^{nd}$ quadrant)
$\frac{{\sqrt {1 + \sin x} + \sqrt {1 - \sin x} }}{{\sqrt {1 + \sin x} - \sqrt {1 - \sin x} }} = $ (when $x$ lies in $II^{nd}$ quadrant)
- A
$\sin \frac{x}{2}$
- B
$\tan \frac{x}{2}$
- C
$\sec \frac{x}{2}$
- D
${\rm{cosec}}\frac{x}{2}$
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- [IIT 1980]
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