complex number ~

thanks BOB =) *HUGS*

115 cis 45*
3 solutions = 120* apart

Are these correct?
115 cis 45*
115 cis 45 + 120 = 165* or is it (-75*)
115 cis (45 + 120 + 120) = 285*?? or (-195*)??

It's really Matthew!I found out what it is but I will help you when you help me plz!!!

Exactly right.

Use the positive angles. You wont make a mistake that way.

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asked by kevin

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