A helicopter flying over a hard-to-reach area had an accident.The team of recatists know that the area where the plane fell hasthe form given by f(x,y) = xsiny, the last position given by theplane was in (3,0), they also know that the direction with whichthe helicopter went was determined by a normal vector to theparabola y = x^2 at the point (1,1). Find the speed with which thehelicopter was going in the direction indicated so that the groupof rescuers can make an estimate of the location of theaircraft.
