Question

7x^2y+6 (partial^2f)/(partial y^2)

Answer 1

HELP PLEASE! I thought it was just 7x^2 but it says incorrect....

Answer 2

7x^2 would be the first partial wrt y
what is the second?

Answer 3

14x?

Answer 4

no, we treat x as a constant since we are taking the partial wrt y

Answer 5

what is the derivative of a constant?

Answer 6

you just drop the constant, don't you?

Answer 7

Ohhh it's 0?!

Answer 8

yes, you "drop" it to zero
now, since we are treating x as a constant, then x^2 is a constant, and 7x^2 is a constant, so...
yes it's 0 :)

Answer 9

Lol thank youuu!!

Answer 10

welcome!