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Find the values ' a ' for which the func...

Find the values `' a '` for which the function `f(x)=(a+2)x^3-3a x^2+9a x-1` decreases for all real values of `x` .

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RD SHARMA ENGLISH-INCREASING AND DECREASING FUNCTION -All Questions
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  3. Find the values ' a ' for which the function f(x)=(a+2)x^3-3a x^2+9a x...

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  4. Find the values of k for which f(x)=k x^3-9k x^2+9x+3 is increasing on...

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  10. Find the intervals in which f(x)=8+36 x+3x^2-2x^3 is increasing or dec...

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  11. Find the intervals in which f(x)=5x^3-15 x^2-120 x+3 is increasing or ...

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