Solve the following equation in the interval [0, 2 $\pi$].
Note: Give the answer as a multiple of $\pi$. Do not use decimal numbers. The answer should be a fraction or an integer. Note that $\pi$ is already included in the answer so you just have to enter the appropriate multiple. E.g. if the answer is $\pi/2$ you should enter 1/2. If there is more than one answer enter them separated by commas.

$(\cos(t))^2=\frac{1}{2}$

t = $\pi$

Your overall score for this problem is