Some Algebra of Calculus Before Calculus you used Algebra to solve for x. Now in Calculus we use Algebra to manipulate an expression to m...
Use limits to test Continuity! We check if the function exits, the limit from left and right exist, and they are all match!
We can use Theorems together with algebra tricks to find limits that have the indeterminate 0/0 form.
Don't fear the "∆x" it works like a single variable, and refers to the change in x.