amy200518 amy200518
  • 23-11-2022
  • Mathematics
contestada

If x is the interval (pi/2,pi) and y is in the interval (pi,3pi/2) and the sin x= 3/4 and cot y=5/6, evaluate each of the following.
a) sin (x+y) b) cos(x-y) c) tan(x-y)

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