if tan a =-7/25 and cot b=3/4 for a second quadrant angel a and third quadrant b, find: sin(a-b), tan(a-b), and the quadrant containing a-b

Answer 1

Tan(a) = -7/25 a = 143.13° Cot(b) = 3/4 b = 216.87°

Sin(a-b) = Sin(-73,87 ) = -.959

Tan(a-b) = Tan(-73.87) = -3.39

a-b is in the 4th quadrant.