09pure maths paper 1 Q8(b) 10點

2009-05-22 7:05 am
how to solve 2009 pure maths paper 1 Q8 part(b)
更新1:

and part (c) also

更新2:

but in part (c), AM=MA , then MA^r = A^r M why ?

回答 (1)

2009-05-22 7:43 am
✔ 最佳答案
As follows:

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2009-05-21 23:45:06 補充:
呢題我考個時就冇做過...
C PART其實都係爆出黎利用AM=MA的關係...我可能寫得步驟多左...但概念很簡單!所以C PART係2分而已...

2009-05-22 19:42:12 補充:
Since AM=MA

Just take one example...

(MA)AA
=(AM)AA
=A(MA)A
=A(AM)A
=AA(MA)
=AAAM


收錄日期: 2021-04-22 00:39:35
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