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### See 3 Answers

Could you pls show me in detail how to get (n-3)/4 *3. And the 1.75(1-p) ?I'm blur

Go see my 2nd post

See i saw dy...but dont really understood.Could u pls show te basic formula of that n!....

For nC4,why we didnt cutt tat (n-3)?How to know which one to cutt

Ok go look at the new post with colors. I divide both sides by nC3. I cancel out common factors.

Oktq

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Suppose the (1-p)must be at LHS right?Since (1-p)^n-4 / (1-p)^n-3= we cut that 3 off right?

Date Posted:
11 months ago

Use laws of indices...

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

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

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

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