AP EAMCET2008MathematicsLimits
If f(2)=4 and f^ (2)=1 , then _ x 2 x f(2)-2 f(x) x-2 is equal to
Options
- A-2
- B1
- C2
- D3
Correct answer
C. 2
Step-by-step solution
Given that, f(2)=4 and f^ (2)=1 aligned & _ x 2 x f(2)-2 f(x) x-2 & = _ x 2 x f(2)-2 f(2)+2 f(2)-2 f(x) x-2 = & _ x 2 f(2)-2 _ x 2 f(x)-f(2) x-2 = & f(2)-2 f^ (2) = & 4-2(1) = & 2 aligned