\frac{\sqrt{1+\sin x}+\sqrt{1-\sin x}}{\sqrt{1+\sin x}-\sqrt{1-\sin x} – InterviewSolution

1.

\frac{\sqrt{1+\sin x}+\sqrt{1-\sin x}}{\sqrt{1+\sin x}-\sqrt{1-\sin x}}=\left(\text { when } x \text { lies in } II^{nd \prime} \text { quadrant) }\right.

Answer»

why u write sinxas sinx/2

sinx=2sinx/2 cosx/2formula sin2A=2sinAcosA

that I know but there is any relation b/w 2nd quad

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