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junior college 2 | H2 Maths
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Vick Lo
Vick Lo

junior college 2 chevron_right H2 Maths

I need help with permutations and combinations!!

Date Posted: 6 years ago
Views: 345

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Jiayang
Jiayang's answer
1883 answers (Tutor Details)
1st
Use the calc and check the answers for me thx
Vick Lo
Vick Lo
6 years ago
Hi thanks for your help! Could you help me w part 3 of ques 1 too??
Vick Lo
Vick Lo
6 years ago
Hi sorry to trouble again, I don't understand how you got the last part for q2
Jiayang
Jiayang
6 years ago
Are the numerical values in the first place? Hahaha
Jiayang
Jiayang
6 years ago
Anw for that Qn the first portion is all unique alphabets, 2nd portion is if there's 2 Ls inside
Vick Lo
Vick Lo
6 years ago
oh I see, I thought only the first case is needed since they said distinct-lettered
Jiayang
Jiayang
6 years ago
Oh I missed that part of the Qn. You're right, distinct lettered means all the alphabets are different.
Vick Lo
Vick Lo
6 years ago
okay now I understand p&c alr, thanks so much!!!!
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Jiayang
Jiayang's answer
1883 answers (Tutor Details)
Oops I missed that out