$\"\"$

\

(b)

\

The given function is $\"\"$ .

\

$\"\"$ \ \

\

$\"\"$ \ \

\

Two regions of area

\

1)

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

2)

\

$\"\"$

\

$\"\"$ $\"\"$

\

Therefore total area by integrating with respect to y.

\

\

$\"\"$

\

$\"\"$ (Inegrating) \ \

\

$\"\"$ (Add)

\

$\"\"$

\

\

$\"\"$

\

\

$\"\"$ \ \

\

$\"\"$ (Powers $\"\"$ )

\

$\"\"$ \ \

\

$\"\"$ \ \

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$ \ \ $\"\"$

\

The solutions is $\"\"$ .