Trigonometry

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√3 + 5cos⦸ = 3 cos⦸

Can someone please explain for me how to express the answer in radian measure?

Thanks

• Trigonometry -

√3 + 5cosθ = 3cosθ
2cosθ = -√3
cosθ = -√3/2

θ = 5π/6 or 7π/6

• Trigonometry -

thank you steve!!

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