GATE XE (Engineering Sciences) 2007 - Question 16

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Section: Engineering Mathematics | Marks: 2

Let $f(x + iy) = u(x,y) + iv(x,y)$ be an analytic function defined on the complex plane satisfying $2u^2 + 3v^2 = 1$. Then

  • A. $f$ is a constant
  • B. $f(z) = kz$ for some nonzero real number $k$
  • C. $u(x,y) = \frac{\cos(x+y)}{\sqrt{2}}$
  • D. $v(x,y) = \frac{\sin(x-y)}{\sqrt{3}}$

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