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The interval in which y = x^2 e^-x is in...

The interval in which `y = x^2 e^-x` is increasing is:

A

`(-oo,oo)`

B

`(-2,0)`

C

`(2,oo)`

D

`(0,2)`

Text Solution

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The correct Answer is:
D
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BETTER CHOICE PUBLICATION-APPLICATIONS OF DERIVATIVES-PREVIOUS YEAR BOARD.S QUESTIONS FOR PRACTICE
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  2. Find the interval in which the function f(x)=2x^(3)-12x^(2)+18x-5 is s...

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  3. Of all the rectangles, each of which perimeter 32 metres, find one hav...

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  4. Show that of all rectangles inscribed in a given circle the square has...

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  5. Use differentials to approximate sqrt49.5

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  6. Find the point on the curve y^2 = 4x which is nearest to the point (2,...

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  7. Find the point on the curve y^(2)=2x, which is nearest to the point (1...

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  8. Of all the closed cylindrical cans (right circular), of a given volume...

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  9. The radius of a spherical soap bubble is increasing at the rate of 0.5...

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  10. The radius of a spherical roap bubble is increasing at the rate of 0.2...

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  11. The radius of a spherical roap bubble is increasing at the rate of 0.4...

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  12. Find the equation of the tangent to the curve y=2x^(3)+7, which is per...

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  13. Find the equation of the tangent to the curve y=x^(2)+4x+6, which is p...

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  14. Find the equation of the tangent to the curve x^(3)+4y=4, which is per...

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  15. Find the intervals in which the following functions are strictly incre...

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  16. Find the intervals in the following functions are strictly increasing ...

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  17. Find the intervals in the following functions are strictly increasing ...

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  18. Use differentials to approximate sqrt(25.3)

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  19. Use differentials to approximate 3sqrt(26)

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  20. Use differentials to approximate sqrt(0.60)

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  21. A wire of length 28 m is to be cut into two pieces, one of the pieces ...

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