L.C.M.
Find the L.C.M of each of the following groups of polynomials.
1.a,4a,12a
2.3b,6b,9b
回答 (7)
✔ 最佳答案
1.12a.
Let a is 1.
a, 4a and 12a=1,4 and 12
So the LCM is 12a.
2.18a.
Let B is 1.
3b, 6b and 9b=3, 6 and 9
So the LCM is 18a.
2008-01-30 20:27:01 補充:
Sorry 2. is 18b not 18a.
參考: My knowledge
我地假設a=1
a=1
4a=4
12a=12
1,4,12的LCM係12
1,2,,3,4,5,6,7,8,9,10,11,12
4,8,12
12
已經知道12a係a同4a同12a的最少公倍數
2.
如b=2
3b=6
6b=12
9b=18
好似頭先
6.12.18.24.30.36
12.24.36
18.36
大家最少公倍數係36
1.a,4a,12a
Let a= 10
10,40,120L.C.M:120
The L.C.M is(120/10)a=12a
2.3b,6b,9b
Let b=10
30,60,90LCM=:180
The L.C.M. is (180/10)b=18b
參考: me
1.12a(a x 12,4a x 3,12a x 1)
2.18b(3b x 6,6b x 3,9b x 2)
參考: 中二數學教科書
收錄日期: 2021-04-13 15:03:47
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