5. Continuity and Differentiation
medium

વિધેય $f(x) = {x^3} - 6{x^2} + ax + b$ એ $[1, 3]$ માં રોલ ના પ્રમેયનું પાલન કરે છે તો $a$ અને $b$ મેળવો.

A

$11, -6$

B

$-6, 11$

C

$-11, 6$

D

$6, -11$

Solution

(a) $f(1) = f(3) \Rightarrow a + b – 5 = 3a + b – 27 \Rightarrow a = 11$,

which is given in option $ (a)$  only.

Standard 12
Mathematics

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