This looks like a part of a test or assignment, and it is against MHF Policy to post these..
Read Rule No 6.
Here's the solution to a question i had on a test
ok so i don't understand how they got from:
and i don't get how they find the "set numerator to 0" and "set denominator to 0" answers.
any help REALLY appreciated, thanks!
When you differentiate this:
using the quotient rule.
The denominator can be written as:
and the quotient rule applied:
When you set the numerator to zero, you are looking for the maxima and minima (and/or inflexion)
When you set the denominator to zero, you are looking for the vertical asymptotes.