If sin A = 3 and cos B = 9 , 0<A <π/2,0 <B <π/2, find the value of (i) sin ( A + B ),(ii) sin ( A - B)

If sin A = 3 and cos B = 9 , $0 < A < π / 2, 0 < B < π / 2$ , find the value of (i) sin ( A + B ),(ii) sin ( A - B)

Matching exercise

Match the items on the right to the items on the left.

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