Question

If f (a) = 2, f '(a) = 1, g(a) = -1 , g'(a) = 2 , then the value of $\underset{x \rightarrow a}{lim} \frac{g(x)f(a)-g(a)f(x)}{x-a}$ is
(a) –5
(b) $\frac{1}{5}$
(c) 5
(d) none of these

Answer 1

Answer:

c is the correct answer