Question

who is currently studying or i proficient in multivariable calculus and can be my new best friend/ study buddy :/ Because... I need one.. now.

Answer 1

let's be friends :)

Answer 2

i might take linear algebra next sem...we can be freinds tooooo

Answer 3

start by posting an easy problem may be..

Answer 4

but i took multivariable calc 2 years ago

Answer 5

Thank you peeps! :) and yeah hold on...

Answer 6

and ohhh linear.. ive heard all bad news about it. :(

Answer 7

shouldn't be too bad...compared to comp

Answer 8

ok, so idk the "difficulty in this one..
use the cross product to find the area of the triangle with the vertices P=(1,1,5), Q=(3,4,3), R=(1,5,7)

Answer 9

only thing i got in this coconut is....
pair the points to create vectors
then ||VxW|| then divide by two?

Answer 10

Yes! ||QP x QR|| gives the area of paralellogram formed by taking vectors QP and QR as adjacent sides

dividing that by 2 gives the area of traingle

Answer 11

oh ok! my confusion was how do you know if its QP or QR and not PQ and RQ?

Answer 12

it doesnt matter, we should get the same answer by taking any combination

Answer 13

ohhh. ok then hmm a couple more questions? :0 How late are you up?

Answer 14

il be around for another hour or so...

Answer 15

by any chance do you have a cell phone to text? because lets just say ive recieved more feedback from you than anyone else

Answer 16

you may message me or tag me anytime.. i live in india so im not sure if it is easy to text me hmm il pm you my skype id :)

Answer 17

h. Cool. I rarely am able to skype but ill find the time :) Im going to try to do more problems. if i need help ill comment

Answer 18

sure :) please open a new thread for next question
that way your questions get bumped up on top and others will be able to see..

Answer 19

Will do!