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Function f(x)=- x^(2) +10 x+12 has maxi...

Function `f(x)=- x^(2) +10 x+12 ` has maximum value at x =

A

`-5`

B

5

C

`-4`

D

3

Text Solution

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The correct Answer is:
B
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MARVEL PUBLICATION-APLICATIONS OF DERIVATIVES-MULTIPLE CHOICE QUESTIONS (TEST YOUR GRASP - II : CHAPTER 12)
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  9. Each side of an equilateral triangle increases at a uniform rate of 0....

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  10. If the surface area of a cube increases at the rate of 0.6cm^(2) //sec...

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  13. A ladder 10 m long leans against a house. When its foot is 6 m from th...

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  14. If y=(log x) - (2)/(x), x=(1)/(2), deltax =10 ^(-8), then delta y ~~…

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  15. If 1^(@) =0.0174^(c), then tan (45^(@) 50')~~…

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  16. If diameter of a sphere is 2 cm with error 0.082 mm, then approximate ...

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  17. If a wire of length l, with error delta l, is bent into an equilatera...

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  18. if radius of a sphere is r with error delta r , and S is its surface ...

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  19. If 1^(@) =0.018^(c), then sin^(2) (45 ^(@) 2')~~…

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  20. A point P moves along the curve y=x^(3). If its abscissa is increasing...

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