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Question

What does twice differentiable mean?


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Solution

Twice differentiable:

  • Twice differentiable means the double derivative of the function.
  • If a function is twice differentiable, then the second derivative of the function exists.
  • From twice differentiable of a function we get the maxima and minima of the function.
  • If f''(x)<0 at x=a, then function is maxima at x=a.
  • If f''(x)>0 at x=a, then function is minima at x=a.

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