SOLUTION: roots of z^4=-2

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: roots of z^4=-2      Log On


   



Question 712580: roots of z^4=-2
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
roots of z^4=-2
------
z^4 = 2cis(180)
z+=+root%284%2C2%29cis%2845%29
And cis(135), cis(225), cis(315)