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A-Level Maths: E7-35 [Trig Equations: Solve sin^2(x) + 2sin(x) - 3 = 0, 0-360 degrees]
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A-Level Maths: E7-35 [Trig Equations: Solve sin^2(x) + 2sin(x) - 3 = 0, 0-360 degrees]
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