Question

partial derivative:
f(x; y) = xe ^ (2x+3y)

Answer 1

partial derivative w.r.t x or y ?

Answer 2

both

Answer 3

can u differentiate normally ?

Answer 4

i don't know the rule...

Answer 5

to partially diff. w.r.t x, treat y as a constant
to partially diff. w.r.t y, treat x as a constant

Answer 6

i don't know the rule when it involves e^u

Answer 7

u know chain rule ?

Answer 8

and product rule ?

Answer 9

yes

Answer 10

so lets diff. partially w.r.t y first
so f' = x e ^ (2x+3y)
x is constant, can , u diff w.r.t y now ?

Answer 11

xe^2x+3y + e ^2x+3y
...i dont know...:((

Answer 12

f' = x e^(2x+3y) d/dy(2x+3y) = xe^(2x+3y) (3)
got this ?

Answer 13

2xe^(2x+3y) & 3xe^(2x+3y) ??

Answer 14

u have to use product fule for diff. w.r.t x

Answer 15

*rule

Answer 16

2xe^(2x+3y) + e^(2x+3y) ??

Answer 17

u don't know product rule , right ?