1)given that: (1+x)^n=summation nCk X^K(adsbygoogle = window.adsbygoogle || []).push({});

PROVE: SUMMATION nCk p^k q^n-k =1, where p+q=1

2) prove the general law of addition: P(E1 U E2 U.....U En)=sum P(Ei)-sum P(EiEj)+sum P(EiEjEk)-.....(-1)^n-1 P(E1E2....En)

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: How to prove the following

**Physics Forums | Science Articles, Homework Help, Discussion**