Mathematics (AS & A Level) · Feb / March 2024 · Paper 32 · Question 11
9709
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The variables y and i satisfy the differential equation ( )( ) cos d d e y y 1 1 2 y 3 i i + + = . It is given that y 0 = when r 4 1 i = . Solve the differential equation and find the exact value of tani when y 1 = . [9]
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