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put this solution on YOUR website!The maximum value for sin ax is 1
the minimum value for sin ax is -1
so the answers:
1. the maximum value for y = 1/3 sin 5x is
1/3 * 1 = 1/3 (a)
2. the minimum value for g(x) = 4sin 5x + k is
4*(-1) + k
= -4 + k
= k - 4 (d)