If the domain of the function f(x) = cos-12x - 511 - 3x + sin-1(2x2 - 3x + 1) is the interval [α, β], then α + 2β is equal to:

The function f: ℝ → ℝ given by f(x) = x3 is:

Find the value of [-2.3] (greatest integer function of -2.3).

If 2f(x) + f(1-x) = x, then what is f(x) equal to?