Question

calc 3 help

here is the problem:

i know the answer, i just have no idea how to get it

Answer 1

http://imgur.com/RE1JW

Answer 2

well why do you need the explanation if you know the answer

Answer 3

under transformation you would normally multiply by http://en.wikipedia.org/wiki/Jacobian_matrix_and_determinant

Answer 4

it's explained here in detail http://www.youtube.com/watch?v=UZb9hZIAvL4

Answer 5

say x = u^2 + v and y=2v
the area would be
\[\begin{vmatrix}
{\partial (u^2 + v) \over \partial u} & {\partial (u^2 + v) \over \partial v}\\
{\partial (2v) \over \partial u} & {\partial (2v) \over \partial v}\\
\end{vmatrix} \times \text{ area of }[1,0] \times [0,1] \]

Answer 6

awesome, thanks for the help