Question

check my work, please. I don't see my mistake, but the result is wrong :(

Answer 1

The Area is supposed to be 6, right? but I don't know where my mistake is!!

Answer 2

@mathmale @.Sam.

Answer 3

the answer is 2 in x-y also

and it is the absolute val of the Jacobian...!

Answer 4

It should be 6 @IrishBoy123

Answer 5

look at this

https://i.gyazo.com/403400657dff4cd650d57bae3762f322.png

Answer 6

oh, | jacobian| gives us 1/3

Answer 7

then, the answer is 2 because the scale of u,v is different from the scale of xy, right?

Answer 8

yes

Answer 9

I got you!! thank you so so so much. !!! hehehe

Answer 10

I have much more problem in cal3. I want to review it. help me? huh?

Answer 11

i found this brilliant vid recently on where the Jacobian comes from. i'll post a link here.

Answer 12

this is highly visual, made for dunces like me lol!!

https://www.youtube.com/watch?v=rnnrUDdKzm0

Answer 13

Thank you, friend!!