Question

Evaluate the expression without using a calculator:

sin pi/6 + cos pi/6

Answer 1

use the exact ratio triangle



then

\[\sin(\frac{\pi}{6}) = \frac{1}{2} \] \[\cos(\frac{\pi}{6}) = \frac{\sqrt{3}}{2} \]

so the solution is

\[\frac{1}{2} + \frac {\sqrt{3}}{2} = \frac{?}{2}\]

you just need to finish it off

Answer 2

okay! thanks