is
differentiable functions and if f?(x) does not vanish any where, then prove
that f(?5) 
f(5).
Answer:
Given
f(x) is differentiable function.
is also
continuous function
differentiability
Since
f(x) satisfies both contidions of L.M.V. theorem therefore f?(c) = 
but it is
given that f?(c) 
0
for any c
f(5) 
Hence
the result.
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