Find the Jacobian of the transformation.
$ x = 2u + v $, $ y = 4u - v $
the problem is finding the Jacobean off the transformation. Actually, if we go to true, you possibly Why is he called for you? Minus Lee? Since Jacoby off the transformation is partial box. Why partial you which is equal to determinant of partially axe special. You relax. So why are you? But why Partial green which is equal to two one or the next one? The answer is negative six.