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International Baccalaureatte | Further Maths HL
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Pikachu
Pikachu
Date Posted: 1 year ago
Views: 72

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Jiayang
Jiayang's answer
1883 answers (Tutor Details)
1st
Pikachu
Pikachu
1 year ago
Could you pls show me in detail how to get (n-3)/4 *3. And the 1.75(1-p) ?I'm blur
Jiayang
Jiayang
1 year ago
Go see my 2nd post
Pikachu
Pikachu
1 year ago
See i saw dy...but dont really understood.Could u pls show te basic formula of that n!....
Pikachu
Pikachu
1 year ago
For nC4,why we didnt cutt tat (n-3)?How to know which one to cutt
Jiayang
Jiayang
1 year ago
Ok go look at the new post with colors. I divide both sides by nC3. I cancel out common factors.
Pikachu
Pikachu
1 year ago
Oktq
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Jiayang
Jiayang's answer
1883 answers (Tutor Details)
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Pikachu
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2 answers (A Helpful Person)
Suppose the (1-p)must be at LHS right?Since (1-p)^n-4 / (1-p)^n-3= we cut that 3 off right?
Jiayang
Jiayang
1 year ago
Use laws of indices...

n-4 - (n-3) = -1

So you'll get (1-p)^-1 instead