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1.Sketch the region in the plane given by the conditions: 1 ≤ r ≤ 3 and...

1.Sketch the region in the plane given by the conditions: 1 ≤ r ≤ 3 and π/6 < θ < 5π/6

2. Find the polar equation for the curve represented by 4y2 = x

3. Find the Cartesian equation for the polar curve r2 sin2θ = 1

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