Question

y=xe^x-e^x

Answer 1

what should i do here

Answer 2

differentiate ?!

Answer 3

yes

Answer 4

tk

Answer 5

ok so

dy
-- = e^x + xe^x - e^x = xe^x
dx

Answer 6

i think u have an extra term

Answer 7

x*e^x should be the answer

Answer 8

-e^x diff is -e^x

xe^x diff is e^x + xe^x

e^x cancels out

Answer 9

but how does xe^x go to e^x+xe^x

Answer 10

no you must know the chain rule ...

so xe^x

u.v = u d/dx (v) + v d/dx(u)

Answer 11

now* not no

Answer 12

sorry i gtg but chain rule what you should use : )

Answer 13

ok

Answer 14

did you get this?

Answer 15

well, not till now, that i look at it more closely, i think i should use product rule for that frist term

Answer 16

\[y=xe^x-e^x\]
\[y'=xe^x+e^x-e^x=xe^x\]

Answer 17

yup, gives me my anser

Answer 18

thanks

Answer 19

product rule for first one. there is no chain rule here