How to draw graph
Polynomials
a man on the top of vertical observation tower observes a car moving at a uniform speed coming directly towards it. If it takes 12 minutes for the angle of depression to change rom 30 degree to 45 degree, how lon will the car take to reach the observation tower from this point
five years ago gowri was thrice as old as ganesh ten years later gowri will be thrice as old as ganesh how old are gowri and ganesh