Question

f(x,y) x^2+xy22y^3
what is dz?
shat is dz at (3,2) if dx=.02 and dy =-.03

Answer 1

have u tried it yet?

Answer 2

dz = 2x+y, x +6y
at 3,2
dz =8,15

Answer 3

emm...can u plz rewrite ur function :)

Answer 4

x^2 +xy+2y^3

Answer 5

ooops miss type.. i got -.29 at final answer

Answer 6

ok\[dz=(\frac{\partial f}{\partial x},\frac{\partial f}{\partial y})=(2x+y,x+6y^2)\]

Answer 7

u have a little typo there i think its 6y^2 not 6y :) right?

Answer 8

yes.. aarrg

Answer 9

rest will be fine...

Answer 10

thanks
!!!

Answer 11

yw :)