Solve the given equation Enter your answers as a commasepara

Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to two decir places where appropriate.) co (9) = \"va = rad Need Help? Read ih

Solution

cos theta = sqrt 2 / 2

theta = pi/4 + 2 kpi

theta = 7pi/4 + 2 kpi

solutions are

theta = pi/4 + 2 kpi , 7pi/4 + 2 kpi