1.

If cot$(\frac{A}{2})$ = x, then the value of x is1). √[$\frac{(1-cosA)}{1+cosA}$]2). √[$\frac{(1+cosA)}{2}$]3). $\frac{(1+cosA)}{sinA}$4). √[$\frac{(1-cosA)}{2}$]

Answer» OPTION 3 is the RIGHT ANSWER


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