If \( f(x)=x^{3}-a x^{2}+48 x+7 \) is increasing then a lies between

JEE MATHEMATICS MCQ: INCREASING & DECREASING

1 Easy

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Application +4 | -1

f(x)=x^{3}-a x^{2}+48 x+7

is increasing then a lies between

View answer and explanation

Correct option: A

\pm 12

Option A (

\pm 12

) is correct because for the function to be increasing, its derivative must be greater than 0, leading to the condition that a lies between -12 and 12.

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