12. [-/5 Points] DETAILS MY NOTES Use the method of logarithmic differentiation to compute - dy dx y = (6x)* dy dx 13. [-/5 Points] DETAILS MY NOTES Express the following limit in terms of the number e. lim 1 + 1 2k K - 0o 9k 14. [-/8 Points] DETAILS MY NOTES The velocity of a particle moving along a straight line is given by v(t) = In(t + 2) ft/sec. Find the acceleration of the particle. a(t) = ft/sec2 What is the acceleration of the particle when t = 5 sec? a(5) = ft/sec2