- #1
Astraithious
- 20
- 0
Homework Statement
Find the domain of this function and check with your graphing calculator:
f(x)=(1+cosx)/(1-cos2x)
Homework Equations
The Attempt at a Solution
i get to (1+cosx)/(1+cosx)(1-cosx) which is factored. so then setting each one to zero one at a time i figure out that
cosx = -1 and cosx = 1
then i get stuck from there.
here is what the page says to do Step 4
Setting each of those factors to zero, we get:
Step 5
Solving each of those, we get:
Step 6
Combining those, we get:
Step 7
Since those values are where the denominator is zero, our domain is at every value EXCEPT those: