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junior college 1 | H2 Maths
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Helppp
Date Posted: 5 years ago
Views: 307
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If question says how many 3-letter words can be formed, then order of letters is important.
If question says how many 3-letter selections can be made, then order of letters is not important.
Selecting AAE is same as AEA & EAA.
If question says how many 3-letter selections can be made, then order of letters is not important.
Selecting AAE is same as AEA & EAA.
Date Posted:
5 years ago
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