Respuesta :

We know that (5/4)sin(pi) = 0

and (5/4)sin(3pi/2) = -5/4

The curve between x=pi and 3pi/2 is monotonic decreasing, so the

range of (5/4)sin(x) for pi<= x <= 3pi/2   is [-5/4,0]

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Answer:

-4/5 ≤ y ≤ 0

Step-by-step explanation: