Asked by Kai
Find the complex number u=x+yi where x,y € I, such that u^2=-5+12i. HELPPPPPPP!
Answers
Answered by
Scott
(x + yi)^2 = x^2 + 2xyi - y^2
x^2 - y^2 = -5
x y = 6
i would suggest a graphical solution
... try fooplot
u = 2 + 3i
x^2 - y^2 = -5
x y = 6
i would suggest a graphical solution
... try fooplot
u = 2 + 3i
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