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Homework Statement
Simplify:
2csc^2 - csc^4 + cot^4
Homework Equations
The Attempt at a Solution
2(1/sin^2) - 1/sin^4 + cos^4/sin^4
So here, i figured that if i re-write them, that maybe it will leave me more options, but I don't see anything that will cancel out. Then i saw that you can re-write sin^2 as 1 - cos^2, so...
2(1/1 - cos^2) - 1/sin^4 + cos^4/sin^4
I now saw or at least thought that the portion of 1 - cos^2 could cancel out one of te cos^2 from the cot^4
Now we have (assuming I am correct so far.)
2(1/-1) or -2
-2 - 1/sin^4 + cos^2/sin^4
Well that is where I couldn't do anymore, but that is most liekly caused by me doing it wrong.