1.

If from mean value theorem, \[f'({{x}_{1}})=\frac{f(b)-f(a)}{b-a}\], then [MP PET 1999]

A. \[a<{{x}_{1}}\le b\]
B. \[a\le {{x}_{1}}<b\]
C. \[a<{{x}_{1}}<b\]
D. \[a\le {{x}_{1}}\le b\]
Answer» D. \[a\le {{x}_{1}}\le b\]


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