Mathematics (AS & A Level) · Feb / March 2022 · Paper 32 · Question 9
9709
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The variables x and y satisfy the differential equation x + 1 3x + 1 dy dx = y, and it is given that y = 1 when x = 1. Solve the differential equation and find the exact value of y when x = 3, giving your answer in a simplified form. [9] 13
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