Use the formula for instantaneous rate of change, approximationg the limit by using smaller and smaller values of h, to find the instantaneous rate of change for the given function at the given value. f(x) = - cos x at x = 0 f (0 + h) -f (0) Use the formula for the instantaneous rate of change to find where h = 1 h f (0 + h)-f (0) h (Do not round until the final answer. Then round to four decimal places as needed.)