SOLUTION: (-3+3i)•(cos45+i sin 45)
Algebra.Com
Question 563177: (-3+3i)•(cos45+i sin 45)
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
I'm going to assume you meant )
and )
, otherwise this problem is a big ugly mess.
Use the unit circle:
to determine that \ =\ \sin(45^\circ)\ =\ \frac{\sqrt{2}}{2})
.
Substitute and the use FOIL. Don't forget that 
. Collect terms.
John
My calculator said it, I believe it, that settles it
RELATED QUESTIONS
x^2/a^2+y^2/a^2-(2xy/a^2)cos45=sin^2(45)
please tell me what is the graphical shape of (answered by Edwin McCravy)
3+i /... (answered by jim_thompson5910)
i/3+3i (answered by MathLover1)
(-i)^4*3i^3 (answered by josgarithmetic)
Simplify... (answered by venugopalramana)
(3+3i/1-i)^2 (answered by stanbon)
Simplify:... (answered by Fombitz)
(1+i)3/4+3i (answered by Alan3354)
How do I compute... (answered by Fombitz)
