How do you find the domain and range of $f (x) = cos x + 1$ $f(x)=cosx+1$ ?

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Answer 1 · 2017-07-05T20:29:55

graph{cos x + 1 [-10, 10, -5, 5]}

If you graph the function, you can see that the domain includes all real numbers, and the range includes all values from 0 to 2, inclusive.

D: $(- \infty, \infty)$ $(-oo,oo)$
R: $[0, 2]$ $[0,2]$

How do you find the domain and range of f(x)=cosx+1f(x)=cosx+1?