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If f(x) = 0 has n roots, then f'(x) = 0 ...

If f(x) = 0 has n roots, then f'(x) = 0 has ………..roots

A

`n`

B

`n-1`

C

`n+1`

D

`(n-r)`

Text Solution

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The correct Answer is:
B
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