Question

If cosA=1/2, then the value of tanA is

Answer 1

CosA = 1/2

$SinA = \sqrt{1-cos^2A}$

$SinA= \sqrt{1-\frac{1}{4} }$

SinA = $\frac{\sqrt3}{2}$

Hence, tanA = $\frac{SinA}{CosA} = \sqrt3$