Mabel
Lv 5
Mabel 發問於 科學及數學數學 · 1 十年前

directional derivatives I

wt do i need to do in order to get to the answer!?

plz show me the important steps~~*

圖片參考:http://img177.imageshack.us/img177/1835/math101.jp...

更新:

i guess not...coz i actually worked out i and ii...

direction of (1,1,0) means (1+1)i + (1+2)j + (0-1)k yeh!?

2 個解答

評分
還有問題嗎?立即提問即可得到解答。