- #1
- 5
- 0
Homework Statement
Find lim(x --> 2) f(x)
Homework Equations
Given lim(x-->2) ((f(x)-5)/x-2)) = 3
Find lim(x --> 2) f(x)
The Attempt at a Solution
The answer is 5. but i dun know the formal steps.
How do you know the answer is 5? What are the informal steps?The answer is 5. but i dun know the formal steps.
This is fine. But just so I can be sure you know what's going on -- why is it that you can evaluate [itex]\lim_{x \to 2} x-2[/itex] by substituting x with 2 in (x-2)?If i subs x=2 into the denominator, the denominator goes to 0.
Can you say why?therefore, the numerator should equals 0
That's wrong. Did you mean f(x)=5? That's wrong too. Did you mean f(x) goes to 5? Then that would be right.and x=5