saujanya

tangents are drawn from the origin to the curve y=sinx, then their point of contact lies on the curve _________

30 mt

time taken to travel by bus= 30 min = 1/2 hour time taken to travel by train = 20min = 1/3 hour let the speed of bus be = x mph then speed of the train = (x+15) mph speed = distance/time let the distance to work be y metres then, distance= speed*time 1/2*...