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Engineering Maths · Q63

Complex Variable

Engineering and GATE · Engineering Maths · question 63

Q63

If f(x + iy) = x3 - 3xy2 + i (x, y) where i = - 1 and f(x + iy) is an analytic function then (x, y) is

If f(x + iy) = x3 - 3xy2 + i(x, y) where   and f(x + iy) is an analytic function then (x, y) is
A.
y3 - 3x2y
B.
3x2y - y3
Answer
C.
x4 - 4x2y
D.
xy - y2

Answer: Option B

Solution

Answer: Option B
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