**Question**

**Introduction**

This looks
like a scary limit to calculate. Indeed,
it is quite tricky, as

*x*goes towards negative infinity and there is a square root. However, we can often work out the correct answer informally first.**Informal Solution**(intuitive approach)

**Formal Solution**

**Final Remark**

Having the
informal solution (which can be worked out on rough paper or even mentally) gives
us an idea of the answer. We can counter-check
our formal solution with the informal solution for confirmation.

**Suitable Levels**

*****Advanced Placement (AP)

* University / college level calculus

* other syllabuses that involve limits
## No comments:

## Post a Comment