Question

f(2) = 4 and f'(2) = 4 then Lt x=>2 xf(2) - 2 f (x) / x-2. y is given by

Answer 1

Apply Lopital rule
differentiate numerator and denominator
to get Lt. (f2+ xf'2 - 2f'x)/-2
x->2.
4+8-8/-2
-2