- #1

DottZakapa

- 239

- 17

Member has been reminded to show some effort from his side.

i compute the partial derivative, the vector that i have to use the one in the text or

w=(2/(5^(1/2)), 1/(5^(1/2)))

using the last one i get minus square root of five , if i don't divide by the norm the answer should be B.

i don't understand what D means