Let f(x) = (3x2-9)/(x2-1) (a) What is the domain of f? (b) Is f odd, even, or neither?

Let f(x) = (3x2-9)/(x2-1) (a) What is the domain of f? (b) Is f odd, even, or neither?

The answer is between 0 < or equal to theta< 2pi

The answer is between 0 < or equal to theta< 2pi

arccos(-1/2)

Csc(tan-1 √3/3)

tan-1(-1)

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I'm confused. Thank you for your help.

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Cos3x=cosx

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