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Solve 2cos^2 x+3 cos x-2=0...

Solve `2cos^2 x+3 cos x-2=0`

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To solve the equation \(2\cos^2 x + 3\cos x - 2 = 0\), we can follow these steps: ### Step 1: Identify the quadratic equation The given equation is a quadratic equation in terms of \(\cos x\). We can rewrite it as: \[ 2\cos^2 x + 3\cos x - 2 = 0 \] ...
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