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5. Continuity and Differentiation
medium

ધારો કે બધા $x $ માટે $ f $ વિકલનીય છે. જો $x \in  [1, 6]$ માટે $f (1) = -2$  અને $ f'(x) \geq 2$  હોય, તો......

A

$f(6) \geq  8$

B

$f(6) < 8$

C

$f(6) < 5$

D

$f(6) = 5$

Solution

$LMVT\,\,$ નો ઉપયોગ કરતાં $\frac{{{f}{\text{(6)}}\,\,{\text{ – }}\,\,{f}{\text{(1)}}}}{{\text{5}}}\,\,\, \geqslant \,\,2$

$\therefore \,\,\,{f}(6)\,\, \geqslant \,\,8$

Standard 12
Mathematics

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