Question

What trigonometric ratios of angles from $0^o$ to ${90}^o$ are equal to $\frac{1}{2}$?

Answer 1

The trigonometric table of all the functions with all values are shown in the above table:

Hence, from the given table we observe that between $0^o$ to ${90}^o$, the below trigonometric functions are equal to $\frac{1}{2}$.

$\sin \frac{\pi }{6}=\cos \frac{\pi }{3}=\frac{1}{2}$