The question says a 4 digit code must be formed. So we assume the digits they're forming the code with are the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 which are 10 individual digits. So that's why she uses 10
"FLORIDA" there is no way can be repetition on this word, i think tht affects the answer. Like word BEE if repetition is allowed 6 ways But if repitition is not allowed only 3 ways because BE1E2 and BE2E1 would mean the same word BEE and so on and so on. If you do it manually you would see before doing with the formula. Number ur alphabet E as E1 and E2. I hope it makes sense.
this woman can teach!
Wow. What a brilliant lesson! I understand this chapter quite well now. Thank you very much!
Its crazy how I'm watching this November, 11th 2020. I'm writing paper 1 tomorrow and this was helpful.
Same Goodluck
we here together ha😪😅
@C.C. L. lol. Same. Writing in less than 10 hours
Lets go and show it who we are...we can do it☺️
Goodluck❤
Thank you so much. It is more understandable now 💛
i love you maths can be so much fun thank you .you are amazing may GOD BLESS YOU . i really appreaciate this
Wow. She's phenomenal!
Beautiful, she’s so good🥺🥺🥺
Matric 2021. I'm writing maths paper 1 tomorrow 😩😪
😭😭😭aww man n now it's finalz💔🤧
@@happytagged3646 dude!😢
@@rebecca5334if I knew things would b this hectic... I would've payed attention in math class!
@@happytagged3646 😂😂😂😂brah!
Matric 2023 writing Trial on Friday😂
11:18 is it 7 to power 7 or 7! Are words not formed by rearranging letters? 🤔 If so it should be 7!
the last answer is wrong. it's suppose to be 9! over 2!. you forgot that the O's are repeated
are u also writing math paper 1 if yes Good lucky
Omg is everyone still studying 😂😂😂😂 damnn represent
but the question doesn't specify whether repetition is aloud or not
@@tintinagain8019 you should just assume that o and o are identical
No it's not. Check again
13:55 she says 10 were is she getting 10 from?? Coz they they 4 digits
Do you still require an explanation?
Yes
The question says a 4 digit code must be formed. So we assume the digits they're forming the code with are the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 which are 10 individual digits. So that's why she uses 10
@@stinkygherkin8157 not 9
@@stinkygherkin8157 Wow now I understand thanks man😊
calmed
"FLORIDA" there is no way can be repetition on this word, i think tht affects the answer.
Like word BEE if repetition is allowed 6 ways
But if repitition is not allowed only 3 ways because BE1E2 and BE2E1 would mean the same word BEE and so on and so on.
If you do it manually you would see before doing with the formula.
Number ur alphabet E as E1 and E2.
I hope it makes sense.
15:39
Thank you so much