What is if ?
It's all about the algebra, baby.
It's important to notice that because of the square, there are two different possible values for the limit.
Using the rules for limits of sums, limits of powers, and limits of x (we're throwing a lot of rules in here, aren't we?)
Now we raise each side to the 4th power to find
What's if ?
We can solve this one using our rules for products, powers, and roots:
Make it rain.
The who, what, where, when, and why of all your favorite quotes.
Go behind the scenes on all your favorite films.