Question

Simplify following below

Answer 1

Answer: Please See attached file for answers and work for problems 1-2.

1. a= 7

b= 70 degrees

2. a= 6

b= 19pi/20

Explanation:

Use the rule(s):

`z_(1) z_(2) =r_(1) r_(2) cis`(θ
`_(1)`+θ
`_(2)`)

`(z_(1) )/(z_(2)) =(r_(1) )/(r_(2))cis`(θ
`_(1)`-θ
`_(2)`)

and isolate it to standard form: a (cos b + i sin b)

you can also rewrite that as a (cis b)