有數唔識
Twelve identical badges are shared among 8 students
If each student gets at least zero bad ...
john456 發表於 16-2-2013 21:53
回復 chiuandy123
sin C = -(sin A + sin B)
cos C = -(cos A + cos B)
sin²C = (sin A + sin B)²
c ...
曲奇bb 發表於 1-3-2013 15:51
a) Express sin square C in terms of sinA and sinB
b) Express con square C in terms of cosA and ...
chiuandy123 發表於 1-3-2013 15:53
其實因為sin A + sin B + sin C = sin B + sin C + sin A = sin C + sin A + sin B = 0
於是sin A, ...
曲奇bb 發表於 1-3-2013 16:29
[M2求討論]之前m2 quiz見到有一條definite in真係坐左係度(如下)
a) evaluate ∫ln(1+x^2 ) dx
b)Let a(n ...
kaiziart 發表於 3-3-2013 00:57
-.-.png (19.43 KB, 下載次數: 20)
我又黎求助一下先
呢2條係唔識做既
1. (permutation & combination)
5 boys and 5 girls are arranged to ...
小雪冰 發表於 4-3-2013 18:05
我計到 no of cases for students = 12C4 / 3 × 8C4 / 2 = 5775
or 11C3 × 7C3 = 5775
no of ca ...
曲奇bb 發表於 4-3-2013 20:01
2.png (23.88 KB, 下載次數: 7)
歡迎光臨 樂古Nakuz (http://www3.nakuz.com/) | Powered by Discuz! X3.2 |