Mathematics (AS & A Level) · May / June 2016 · Paper 33 · Question 5
9709
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The variables x and y satisfy the differential equation dy dx = e−2y tan2x, for 0 ≤x < 1 20, and it is given that y = 0 when x = 0. Solve the differential equation and calculate the value of y when x = 1 40. [8]
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