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If f(x)=x^3+7x^2+8x-9 , find f\ '\ (4) ....

If `f(x)=x^3+7x^2+8x-9` , find `f\ '\ (4)` .

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RD SHARMA ENGLISH-DIFFERENTIABILITY-All Questions
  1. find the derivative of the function f given by f(x)=2x^3-9x^2+12 x+9

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  2. If for the function "Phi"(x)=lambdax^2+7x-4,\ \ "Phiprime^"(5)=97 , fi...

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  3. If f(x)=x^3+7x^2+8x-9 , find f\ '\ (4) .

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  4. Find the derivative of the function f defined by f(x)=m x+c at x=0 ...

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  5. Examine the differentiability of the function f defined by f(x)={2x+...

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  6. Write an example of a function which is everywhere continuous but f...

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  7. Discuss the continuity and differentiability of f(x)=|log|x|| .

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  8. Discuss the continuity and differentiability of f(x)=e^(|x|) .

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  9. Discuss the continuity and differentiability of f(x)={(x-c)cos(1/(x...

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  10. Is |sinx| differentiable? What about cos|x|?

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  11. Define differentiability of a function at a point.

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  12. Is every differentiable function continuous?

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  13. Is every continuous function differentiable?

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  14. Give an example of a function which is continuous but not different...

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  15. If f(x) is differentiable at x=c , then write the value of (lim)(x-...

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  16. If f(x)=|x-2| write whether f\ '\ (2) exists or not.

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  17. Write the points where f\ (x)=|(log)e x| is not differentiable.

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  18. Write the points of non-differentiability of f(x)=|log|x|| .

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  19. Write the derivative of f\ (x)=|x|^3 at x=0 .

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  20. Write the number of points where f(x)=|x|+|x-1| is continuous but n...

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