Graph fand g in the same viewing rectangle. f(x) = 7 cos(x) - 7 sin2(x), g(x) = 7 - 14 sin(x) Do the graphs suggest that the equation f(x) = g(x) is an identity? Yes No Prove your answer. f(x) = 7 cos(x) - 7 sin(x) = (7 cos (x) - 7 sin (x)) + (7 sin(x) - = = 7- = g(x) Thus, we can conclude the following. Since f(x) = g(x) for some x, this is not an identity. inco f(x) = g(x) for all x, this is an identity.