What is the product of 65(cos(14°) + i sin(14°)) and 8(cos(4°) + i sin(4°))? a) 73(cos(18°) + i sin(18°))
b) 73(cos(56°) + i sin(56°))
c) 520(cos(18°) + i sin(18°))
d) 520(cos(56°) + i sin(56°))

Step-by-step explanation:

Complex  Numbers in Polar Form

Let Z1 and Z2 two complex numbers in the form:

The product of Z1*Z2 is given by:

The given complex number has:

Thus:

the answer is c)8

step-by-step explanaction:

1. x> -5

2. x< 8

step-by-step explanation:

1. 2x> -10

divide by 2 from both sides of equation.

2x/2> -10/2

simplify, to find the answer.

-10/2=-5

x> -5 is the correct answer.

2. 3x< 24

divide by 3 from both sides of equation.

3x/3< 24/3

simplify, to find the answer.

24/3=8

x< 8 is the correct answer.

i hope this you, and have a wonderful day!