- #1
Loppyfoot
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Homework Statement
Find all the natural domain of the function algebraically, and confirm that your result is consistent with the graph produced by your graphing utility.
h(x) = 3/2-cosx
Homework Equations
(a) h(x) = 3/2-cosx
(b)x2-1/(x+1)
The Attempt at a Solution
Do I need to know trigonometric identities? This is just an introductory chapter, so I am guessing I do not need to know the identities. 2-cosx = 0 to find the discontinuity. But how do I find the natural domain?