MCQ
The points at which the function $f (x)=\frac{x+1}{x^2+x-12}$ is discontinuous are
  • A
    $-3, 4$
  • $3, -4$
  • C
    3, 4
  • D
    $-3, -4$

Answer

Correct option: B.
$3, -4$
(B)
$f (x)=\frac{x+1}{(x-3)(x+4)}$
$\therefore f (x)$ is discontinuous at $x=3,-4$.

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