Question 599005
1. find the value of x and y in:
x+(y-6)i=5+9i
The real parts are equal x = 5
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y-6 = 9
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2. find the two square roots of -i
r = 1
Angle t = 270 degs
--> 1cis(270)
sqrt = 1cis(135) & 1cis(315)
1cis(135) = 1cos(135) + isin(135)
= {{{(sqrt(2)/2)*(-1 + i)}}}
= {{{(sqrt(2)/2)*(1 - i)}}}