Use the inner product < f, g >= ∫¹₀ f(x)g(x)dx in the vector space Cº [0, 1] to find < f, g >, || f||, ||g||, and the angle Of,g between f(x) and g(x) for f(x) = 5x² - 9 and
g(x) = -6x - 1.
(f,g) =__