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STD 12 - 5. continuity and differentiation — Mathematics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceMathematicsSTD 12 - 5. continuity and differentiation1 Mark
MCQ
The number of points where the function

$f(x)=\left\{\begin{array}{clr}\left|2 x^{2}-3 x-7\right| \, \text { if } x \leq-1 \\ {\left[4 x^{2}-1\right]} \text { if } -1 < x < 1 \\ |x+1|+|x-2| \text { if } x \geq 1\end{array}\right.$

$[t]$ denotes the greatest integer $\leq t$, is discontinuous is

  • A
    $9$
  • B
    $8$
  • C
    $6$
  • ✓
    $7$
✓

Answer

Correct option: D.
$7$
d

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