- #1
terabite22
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Homework Statement
Find the range of the function: y=(2cosx+1)/(2cosx-1) algebraically
Homework Equations
Reducing it, I obtained: y= tan(3x/2)/tan(x/2), but the discontinuity confuses me
The Attempt at a Solution
I did it with my calculator and this is the result:
Ran = (-oo,1/3] U [3,+oo) but I hope I can get help with the algebraic solution.
Thanks in advance.