question archive Let f(x) be a differentiable function on (1,3)
Let f(x) be a differentiable function on (1,3)
Subject:MathPrice: Bought3
Let f(x) be a differentiable function on (1,3). Suppose limx->2f'(x) exists, i.e. the limit of f'(x), as x approaches 2, exists and is finite.
How do I prove that f'(x) is continuous at x=2.
