RD Sharma - Mathematics (Volume 1)

Book: RD Sharma - Mathematics (Volume 1)

Chapter: 17. Increasing and Decreasing Functions

Subject: Maths - Class 12th

Q. No. 11 of MCQ

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11

Mark the correct alternative in the following:

The function f(x) = x2 e-x is monotonic increasing when


f(x) = x2 e-x


=xe-x(2-x)=f’(x)


for


f’(x)=0


x2 e-x=0


x(2-x)=0


x=2,x=0


f(x) is increasing in (0,2)

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