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If f(x) = |(x - 4) (x - 5)|, then f'(x) ...

If f(x) = `|(x - 4) (x - 5)|`, then f'(x) is

A

`-2x + 9`, for all x e R

B

2x - 9 if x `gt` 5

C

`-2x + 9` if 4 lt x lt 5`

D

not defined for x = 4,5

Text Solution

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The correct Answer is:
B, C, D
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