Find the fx=2x2+8x-4 and g(x)=-5x+6 Find (f-9)(x)
A tower is 50m high. Its shadow is x cm shorter when the Sun 's Altitude is 45 degree than when it is 30 degree. Find x
A tower stands near an airport. The angle of elevation of the tower from a point on the ground is such that its tangent is 5/12. Find the height of the tower, if the distance of the observer from the tower is 120 m.
