Determine all the values of x, 0 E x E 271-, for which the slope of the tangent tof(x) = sin x tan x is zero. An object is suspended from the end of a spring. Its displacement from the equilibrium position is s = 8sin{10nt). Calculate the velocity and acceleration of the object at any time t, and show that d gs 2 + 1007172.? = 0 a