T. Let x] : :53 +39: 2. a In view of the fact that f(0] = 2 and f[1} = 2, whyr would you expect the equation 3:3 + 3:]: 2 = [l to have at least one real root? h explain Wily the graph of f has no horizontal tangent. e Why would you suppose it follows from part [b] that the equation I3+3:2 : D has no more than one real root