一條問題 - Applications of Differentiation : Rate of Change

oscar

In the figure, ABCD is a square of side a cm. P is a variable point on AB such that angle ADP = α and angle BCP = θ. If θ increases at a rate of 1 rad./sec when θ = π/6, find the rate of change of α.

(Copied from New Progress in Additional Mathematics 3 Exercise 15.5 Question 17)

dolphin_ice

Originally posted by 火火火火火 at 2005-8-12 08:37 AM:
= =
中四大半個學期都係教第一册
話要顧住ｄ唔明既學生
重要補課先教完第二册第一課
問你死未．．．．．．

快塭補習啦！
咁樣唔掂！

火火火火火

...............
不過我都開始緊,
但冇時間開第三册
＝　＝

oscar

Originally posted by 火火火火火 at 2005-8-12 08:37:
= =
中四大半個學期都係教第一册
話要顧住ｄ唔明既學生
重要補課先教完第二册第一課
問你死未．．．．．．

我諗你準備定自修好d啦...

火火火火火

= =
中四大半個學期都係教第一册
話要顧住ｄ唔明既學生
重要補課先教完第二册第一課
問你死未．．．．．．

oscar

Originally posted by 火火火火火 at 2005-8-11 08:23:
我校連Straight Lines都未教,
要中五教十幾課書...
我諗都教唔晒...

嘩...什麼先生來的...
教得還比龜慢...

火火火火火

我校連Straight Lines都未教,
要中五教十幾課書...
我諗都教唔晒...

oscar

Originally posted by 火火火火火 at 2005-8-10 08:22:
哎.....我連第二課書都未教(circle個d)
只有自己屋企自習,有小小唔明呀.....
我差一課,唔知趕唔趕得到課程呀.哎

我聽我校的Form4-->Form5，他們A. Maths只教到Straight Lines...
慢爆....

火火火火火

哎.....我連第二課書都未教(circle個d)
只有自己屋企自習,有小小唔明呀.....
我差一課,唔知趕唔趕得到課程呀.哎

細薯

Originally posted by oscar at 2005-8-5 12:55 AM:

差一半什麼內容才教完什麼？
Locus?

Vector
Differentiation
Application of differentiation
Intergration(all)