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Mindblanked need help asap (1 Viewer)

idkkdi

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View attachment 35906
ive attached wut i started off below:
View attachment 35907
a+ib = (x+iy)^2
a = x^2 - y^2
root(a^2+b^2) = x^2+y^2
b = 2xy
find x, find y in terms of a and b. since 2xy = b, only two possible roots.
wlog, take one value of x and one value of y.
compare x+iy with -x+iy.
x + iy = - x + iy
x = 0,
compare
x+iy = x - iy,
y = 0
roots only equal when x = y = 0
 
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