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Let f(x)=(x-4)(x-5)(x-6)(x-7) then. (A)f...

Let `f(x)=(x-4)(x-5)(x-6)(x-7)` then. (A)`fprime(x)=0` has four roots (B)Three roots of` fprime(x) = 0` lie in `(4, 5)uu(5,6)uu(6, 7)` (C) The equation `fprime(x)=0` has only one real root (D) Three roots of `fprime(x) = 0` lie in `(3,4)uu(4,5)uu(5,6)`

A

f'(x)=0 has four roots

B

three roots of `f'(x)=0` line in (4,5) `uu (5,6) uu (6,7)`

C

the equation `f'(x)=0` hs only one root

D

three roots of `f'(x)=0` line `in (3,4)uu(4,5)uu(5,6)`

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B
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OBJECTIVE RD SHARMA-MEAN VALUE THEOREMS-Exercise
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