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GATE2019-4

  1. GATE2019-20
  2. GATE2019-20
  3. GATE2019-20
  4. GATE2019-20

Which one of the following functions is analytic in the region $|z| \leq 1$ ?

  1. $\frac{z^{2}-1}{z}$
  2. $\frac{z^{2}-1}{z+2}$
  3. $\frac{z^{2}-1}{z-0.5}$
  4. $\frac{z^{2}-1}{z+j0.5}$
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