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MATH / For 135^(∘)<x<180^(∘), points P=(cos x, cos^2 x), Q=(cot x, cot^2 x), R=(sin x, sin^2 x) and S=(tanx,tan²x) are the vertices of a trapezoid. What is sin2x? · Discussion

Discussing For 135^(∘)<x<180^(∘), points P=(cos x, cos^2 x), Q=(cot x, cot^2 x), R=(sin x, sin^2 x) and S=(tanx,tan²x) are the vertices of a trapezoid. What is sin2x? · MATH

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