MCQ
$f\left( x \right) = \left| {3 - \left| {3 - \left| x \right|} \right|} \right|$ એ કેટલાં બિંદુ આગળ વિકલનીય નથી ?
  • 5
  • B
    2
  • C
    4
  • D
    1

Answer

Correct option: A.
5
A

અહી |x| એ $x=૦$ આગળ વિકલનીય નથી

તે આપણે જાણીએ છીએ .

અહી $f(x)=\begin{vmatrix}3-|3-|x||\end{vmatrix}$ એ $x=0,$
$|x|=3$ તેમજ $|3-|x||=3,$

$|3-|3-|x|||=6$ એટલે કે

$\therefore \ x=0,x=\pm3,x=\pm6 $ એ $5$

બિંદુઓ આગળ વિક્લનીય નથી.



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