- #1
11thHeaven
- 48
- 0
I have to find the limit as x→∞ of √(x2+x)-xI can't rearrange this into a form where I can put infinity into the expression and get a meaningful answer. I've tried taking out square roots to get √x( √(x+1)-√x ) but if I put infinity into this I just get ∞(∞-∞) which is meaningless.
Now I know that the limit approaches 0.5 (simply by plugging large numbers into my calculator) but I have no idea why this happens.
Now I know that the limit approaches 0.5 (simply by plugging large numbers into my calculator) but I have no idea why this happens.