The area between (x^2)/(a^2)+(y^2)/(b^2)=1 and the line x/a+y/b=1 is

The area between \(\frac{x^2}{a^2}+\frac{y^2}{b^2}=1\) and the line \(\frac{x}{a}+\frac{y}{b}=1\) is