Cauchy-Schwarz Inequality and Its Relation to Trigonometric Identity

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hadi amiri 4
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Homework Statement


what is the relation between cauchy_schwarz inequality and this ;
Sin(a+b)=Sin(a)Cos(b)+Cos(a)Sin(b):biggrin:


Homework Equations





The Attempt at a Solution

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