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true false: cos|x| is differentiable eve...

true false: `cos|x|` is differentiable every where.

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PRADEEP PUBLICATION-CONTINUITY AND DIFFERENTIABILITY-EXERCISE
  1. True or False : The function f(x) = log x^2 has only one point of di...

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  2. The composition of two continuous function is a continuous function.

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  3. true false: cos|x| is differentiable every where.

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  4. True or False : The function f(x) = {:{(x+a, xge1),(ax^2 +1, x <1):}...

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  5. True or False : The function f(x) = |sinx| is differetiable at all ...

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  6. Find ainR so that f(x) = {:{(x^2, x ge0),(ax,x<0):} is continuous at 0...

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  7. For continuity, at x=a, each of lim(xtoa^(+))f(x) and lim(xtoa^(-))f(x...

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  8. True or False : d/(dx) (log10x) = 1/x for all x >0

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  9. True or False : If underset(x rarr a)Lt f(x)g(x) exists then both un...

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  10. If f*g is continuous at x=a, then f and g are separately continuous at...

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  11. All trigonometric functions have inverse over their respective domains...

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  12. True or False : An increasing function is always a continuous functi...

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  13. True or False : The function f(x) = |x-1| is a continuous function.

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  14. True or False : Derivative of an even function is always an odd func...

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  15. Match the following:

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  16. limxrarr0 (e^x - 1)/x is equal to :

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  17. If a>0,a ne1, then log(a)(x^n) =

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  18. Which of the following is not true

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  19. underset(xrarr0)lim (e^x -1)/(x) is equal to

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  20. limxrarr0 (log (1+x)/sin x is equal to :

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