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If f(x) = x^(n) for 0 lt a lt b and na^...

If `f(x) = x^(n)` for `0 lt a lt b ` and `na^(n-1) le (b^(n) - a^(n))/( b-a) le nb^(n-1)` then n is

A

not less than one

B

Zero

C

n is negative integer

D

n is positive

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The correct Answer is:
A
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AAKASH SERIES-MEAN VALUE THEOREMS-PRACTICE SHEET (EXERCISE-I (LEVEL-I))
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