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Find the intervals in which the followin...

Find the intervals in which the following are strictly increasing and strictly decreasing
`f(x)=20-12x+9x^(2)-2x^(3)`

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The correct Answer is:
`(1,2),(-oo,1)uu(2,oo)`
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  10. Use differentials to approximate sqrt(49.7)

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  11. Using differentials, find the approximate value of sqrt 25.5.

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  12. Show that the function f given by, f(x) = x^3 - 3x^2 + 4x, x in R is i...

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  13. Prove that f(x)="log""cos"x is strictly decreasing on (0,pi/(2)) and s...

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  14. Find the equation of the normals to the curve y = x^3+2x+6 which are ...

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  15. The length x of a rectangle is decreasing at the rate of 2 cm. per min...

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  16. The length x of a rectangle is decreasing at the rate of 2 cm. per min...

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  17. The length 'x' of a rectangle is decreasing at the rate of 5 cm per mi...

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  18. The length 'x' of a rectangle is decreasing at the rate of 5 cm per mi...

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  19. Find the intervals in which the function f(x)=6+12x+3x^(2)-2x^(3) is s...

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  20. Find the points on the curve y=x^(3) at which slope of tangent is equa...

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