If f(x) = 6 sin x + 8 cos x, then f'(x) = f'(1) = A mass on a spring bounces up and down in simple harmonic motion, modeled by the function s(t) = 9 cost where s is measured in centimeters and t is measured in seconds. Find the rate at which the spring is oscillating at t = 4 s. Round your answer to four decimal places. cm/s If f(x) f'(x) = - f'(3) = 2 sin 2 + cos2 " then If f(x) = 5x sin * cos x, find f'(x)=\ Find f'(1) - MUI