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Find the value(s) of a for which f(x)=x^...

Find the value(s) of a for which `f(x)=x^3-a x` is an increasing function on `R` .

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RD SHARMA ENGLISH-INCREASING AND DECREASING FUNCTION -All Questions
  1. Prove that the function f(x)=cosx is neither increasing nor decreas...

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  2. Show that f(x)=x^2-xsinx is an increasing function on (0,\ pi//2) .

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  3. Find the value(s) of a for which f(x)=x^3-a x is an increasing functio...

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  4. Find the values of b for which the function f(x)=sinx-b x+c is a decre...

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  5. Show that f(x)=x+cosx-a is an increasing function on R for all values ...

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  6. Find the second order derivative of cotx with respect to x

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  7. Find the intervals in which f(x)=x|x|,\ \ x in R is increasing or dec...

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  8. Find the intervals in which f(x)=sinx+|sinx| is increasing or decreasi...

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  9. Find the derivative of x^sinx with respect to x

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  10. What are the values of ' a ' for which f(x)=a^x is increasing on R

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  11. What are the values of ' a ' for which f(x)=a^x is decreasing on R

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  12. Write the set of values of ' a ' for which f(x)=(log)a x is increasing...

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  13. Write the set of values of ' a ' for which f(x)=(log)a x is decreasing...

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  14. Find ' a ' for which f(x)=a\ (x+sinx)+a is increasing on R .

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  15. Find the values of ' a ' for which the function f(x)=sinx-a x+4 is inc...

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  16. Find the set of values of ' b ' for which f(x)=b(x+cosx)+4 is decreasi...

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  17. Find the set of values of ' a ' for which f(x)=x+cosx+a x+b is increas...

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  18. Write the set of values of k for which f(x)=k x-sinx is increasing on ...

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  19. If g(x) is a decreasing function on R and f(x)=tan^(-1){g(x)} . State ...

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  20. Write the set of values of a for which the function f(x)=a x+b is decr...

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