Fuente TeX:

\int_{0}^{\sqrt 2}{ \int_{\sqrt {4 - y^2} }^{ \sqrt 3 \sqrt {4 - y^2} }{ 1 } } \ dx \ dy + \int_{\sqrt 2}^{\sqrt 3}{ \int_{y}^{ \sqrt 3 \sqrt {4 - y^2} }{ 1 } } \ dx \ dy