In the given figure, if A1 is the area of the ΔAOB and A2 is the area of the parabolic region AOB then the ratio A1 A2 is equal to
A1=12×a2×2a=a3A2=2a×a2−a∫−ax2=2a3−[x33]a−a=2a3−2a33=4a33⇒A1A2=34