Given that sin(a) = 2 5 and cos(b) = − 1 3 , with a and b both in the interval 2 , , find the exact values of sin(a + b) and cos(a − b). sin(a + b) = cos(a − b) =

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06-10-2022
Mathematics

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Given that sin(a) = 2 5 and cos(b) = − 1 3 , with a and b both in the interval 2 , , find the exact values of sin(a + b) and cos(a − b). sin(a + b) = cos(a − b) =

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