To solve the equation
and express the answer in radians in terms of π, we can follow these steps:
Step 1: Add
to both sides of the equation:

Step 2: Divide both sides of the equation by 2:

Step 3: Recall the special values of cosine in the first quadrant:
¥ corresponds to
in radians.
Therefore, the solution to the equation in radians in terms of π is
.