CUET · MATHS · PYQ PAPER 2023
The value of \(x\) for which the slope of the curve \(y=-x^3+3 x^2+x^2+9 x-27\) is maximum, is:
- A \(-1\)
- B 1
- C 2
- D \(-2\)
Answer & Solution
Correct Answer
(B) 1
Step-by-step Solution
Detailed explanation
\(\frac{d m}{d x}=0 \) \( \frac{d}{d x}\left(-3 x^2+6 x+9\right)=0 \) \( -6 x+6=0 \) \( 6 x=6 \) \( x=1\)
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