Manipal MET2023MathematicsLimits
If F: R R is a differentiable function and f(3)=6 , then _ x 3 ₆^ f(x) 2 t d t (x-2) is equal to
Options
- A18 f^ (3)
- B0
- C24 f^ (3)
- D3 f^ (3)
Correct answer
A. 18 f^ (3)
Step-by-step solution
Let I= _ x 3 ₆^ f(x) 2 t x-2 d t [ 0 0 . form, as .f(3)=6 ] On applying the L' Hospital rule, we get I= _ x 3 ₆^ f(x) 2 f(x) f^ (x) 1 ( f(3)=6) So, I=3 f(3) f^ (3)=18 f^ (3) _ x 3 ₆^ f(x) 2 t d t x-2 =18 f^ (3)