[" The function "],[f(x)=cos^(-1)(cos x)" is "]

The function f(x) = sin ^(-1)(cos x) is

The function f(x)=|cos x| is

The function f(x)=[cos x] is

The function f(x)=x+cos x is

The function f(x)=x+cos x is

The domain of the function f(x)= cos^(-1)(x+[x]) is

The domain of the function f(x)=cos^(-1)(x-[x]) is

Define the function, f(x)=cos^(-1) (cos x)-sin^(-1) (sin x)" in "[0,2pi] and find the area bounded by the graph of the function and the x-axis.