Inactive Tutor answered • 05/30/21
Tutor
New to Wyzant
4cos(2theta)=1
cos(2theta)= 1/4
arccos(cos(2theta)= arccos(1/4)
2theta = 1.318 rads
theta = 1.318/2
theta = 0.6595 rads or 37.80 degrees
Jacob T.
asked • 05/29/21Solve for θ, to the nearest degree, in the interval 0 0 ≤ θ ≤ 360 4cos2 θ = 1
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