11are I am not saying that
wat is r?
If I hav a misconception please clear
let Z be a complex no. = 2+3i...
in Argands plane the coordinate of the complex no. is (2,3i)
now we know that modulus of z = r that is the distance of the coordinate from origin....
now
r=√x2+y2
where x and y are 2 and 3i
then r shud be √22+(3i)2
but is it given only√22+32
why???
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2 Answers
36wat?
if z = x + iy then x and y are real numbers and are known as real and img. parts resp.
modulous of z = |z| = √[(real part)2 + (img part)2] = √(x2 + y2)