Number of zeros of $p(x) = x^{2} + 1$ in real numbers is

Number of zeros of $p(x) = x^{2} + 1$ in real numbers is
  1. $0$
  2. $1$
  3. $2$
  4. infinitely many

Solution

$x^{2} + 1 > 0$ for all real $x$; no real zeros.

Asked in: MH-SSC-9

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