If [t] denotes the greatest integer \leq t, then the number of points, at which the function f(x)=4 |{}/{}2 x+3|+9[x+\frac{1}{2}]-12[x+20] is not differentiable in the open interval (-20,20), is ________. [29-Jul-2022-Shift-2]

JEE Mains 29-July-2022 Shift 2 Solved Paper

Section: Mathematics

Question : 26 of 90

Marks: +1, -0

If [t] denotes the greatest integer ≤t, then the number of points, at which the function f(x)=4|

‌

2x+3|+9[x+‌

]−12[x+20] is not differentiable in the open interval (−20,20), is ________.

[29-Jul-2022-Shift-2]

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