# Cauchy schwarz math help

1. Jun 6, 2008

### hadi amiri 4

1. The problem statement, all variables and given/known data
what is the relation between cauchy_schwarz inequality and this ;
Sin(a+b)=Sin(a)Cos(b)+Cos(a)Sin(b)

2. Relevant equations

3. The attempt at a solution

2. Jun 6, 2008

### foxjwill

Think of it as the dot product of two vectors. From that you can show that, although already obvious, $$\sin{(a+b)}\leq 1$$.

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