Question

If a = (8.4∠39°) and b = (5.2∠50.4°), find the product a·b and the quotient a/b

Answer 1

a*b would be (8.4)(5.2) < (39+50.4), or  43.68 < 89.4 degrees.

In the case of the quotient:  Divide 8.4 by 5.2 and then subtract 39 from 50.4 (degrees).