CBSE Class 11-science Answered
Find the square root of 5+12i.
Asked by friendship | 10 Oct, 2010, 02:50: PM
Expert Answer
=x+iysquaring we get
5+12i=x2-y2+2xyi
comparin we get
5=x2-y2
6=xy
so
y=
solving we get
x=3 or x =-3
so y=2 or y=-2
so = 3+2i or -3-2i
= 3+2i or -3-2inote that x and y should have the same sign to adhere to the equation xy=6
Answered by | 11 Oct, 2010, 11:47: AM
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