Find two angles $\theta$ between 0 and $2\pi$ such that $\sin(\theta) =$ 0.85. Start by drawing a sketch. Enter your answers as a comma separated list. Note that all solutions should be in radians.

$\theta =$ help (numbers)

Find two angles $\theta$ between 0 and $2\pi$ such that $\cos(\theta) =$ 0.71. Start by drawing a sketch. Enter your answers as a comma separated list. Note that all solutions should be in radians.

$\theta =$ help (numbers)

Hint: