You won't get step by step here I'm afraid, but the first thing to do would be to graph the functions, see which points on the domain , which points on the domain .
Then, the Area is (if )
i havent taken calculus for a few years now and i need step by step on 1 problem i was assigned
1.) i need to find the area between these 2 functions
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f(x) = cosx
g(x) = 2-cosx 0 <= x <= 2(pi)