The graph of the function f(x) = cos(x) is shown. What is the range of the function?
A. [-3,3]
B. (-00, 00)
C. [-1, 1]
D. (0, 2m)

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).