Write the expression as the sine, cosine, or tangent of an angle. cos 96° cos 15° + sin 96° sin 15°

If f(x) = 4 - x2 and g(x) = 6x, which expression is equivalent to (g-f)(3)? 06-3-(4 + 3)2 06-3-(4-33 6(3) - 4 +32 6(3) -4 -32