\sqrt { \frac { 1 + \sin \theta } { 1 - \sin \theta } } + \sqrt { \fra – InterviewSolution

1.	\sqrt { \frac { 1 + \sin \theta } { 1 - \sin \theta } } + \sqrt { \frac { 1 - \sin \theta } { 1 + \sin \theta } } = 2 \sec \theta
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