Please answer both question (a) (b) (c) in this problem

4. (15 points) Let dX, =-2dt +5dB, be a Brownian motion with drift. Apply It's formula to (a) Y, = e-31x, (b) Y, = sin(t +X) (C) Y = (X, cost) 4. (15 points) Let dX, =-2dt +5dB, be a Brownian motion with drift. Apply It's formula to (a) Y, = e-31x, (b) Y, = sin(t +X) (C) Y = (X, cost)