#### Find the area enclosed by the loop in the curve,  Option 1) 128/15   Option 2) 15/128   Option 3) 130/17   Option 4) 17/130

put y=0

It means curve makes the loop symmetric about x axis between 0 and 4

Now let 4-x=t

-dx=dt

Option 1)

This solution is correct

Option 2)

This solution is incorrect

Option 3)

This solution is incorrect

Option 4)

This solution is incorrect