could someone please help me out with this question?

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402

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+101

8cos^2θ – 10cosθ – 7 = 0

vxnessa Nov 24, 2021

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1⁺⁰ Answers

+118687

+1

let x= cosθ

solve it as a quadratic. (for x)

then sove for theta.

Melody Nov 24, 2021

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