a-level maths: e7-44 trig equations: solve 7sin^2(x) - 5sin(x) cos^2(x) = 0 between 0 and 2π rad
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a-level maths: e7-43 [trig equations: solve 7sin^2(x) - 5sin(x) cos^2(x) = 0, 0-360 degrees]
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