The double integral \(\mathop \smallint \limits_0^a \mathop \smallint \limits_0^y f\left( {x,\;y} \right)\) dx dy is equivalent to

\(\mathop \smallint \limits_0^a \mathop \smallint \limits_0^a f\left( {x,\;y} \right)dx\;dy\)

\(\mathop \smallint \limits_0^x \mathop \smallint \limits_0^y f\left( {x,\;y} \right)dx\;dy\)

\(\mathop \smallint \limits_0^a \mathop \smallint \limits_x^y f\left( {x,\;y} \right)dx\;dy\)

\(\mathop \smallint \limits_0^a \mathop \smallint \limits_x^a f\left( {x,\;y} \right)dy\;dx\)

The double integral \(\mathop \smallint \limits_0^a \mathop \smallint

1.	The double integral \(\mathop \smallint \limits_0^a \mathop \smallint \limits_0^y f\left( {x,\;y} \right)\) dx dy is equivalent to
A.	\(\mathop \smallint \limits_0^x \mathop \smallint \limits_0^y f\left( {x,\;y} \right)dx\;dy\)
B.	\(\mathop \smallint \limits_0^a \mathop \smallint \limits_x^y f\left( {x,\;y} \right)dx\;dy\)
C.	\(\mathop \smallint \limits_0^a \mathop \smallint \limits_x^a f\left( {x,\;y} \right)dy\;dx\)
D.	\(\mathop \smallint \limits_0^a \mathop \smallint \limits_0^a f\left( {x,\;y} \right)dx\;dy\)
Answer» D. \(\mathop \smallint \limits_0^a \mathop \smallint \limits_0^a f\left( {x,\;y} \right)dx\;dy\)