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Sticky Note
If f(x) = 5, then f’(x) at x = 1 is ?
  1. 1
  2. 0
  3. 5
  4. ∞
Explanation

If f(x)=5f(x) = 5, then what isf'(x) at x=1x = 1?

This is a constant function, meaning:


f(x) = 5 quad text{for all } x

The derivative of a constant is always:


f'(x) = 0

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