Compound Angles – sin(A+B) = cosAsinB+sinAcosB
Compound angles are angles made by adding two other angles together. When using trigonometry unfortunately you cant just “times out” the trig function but have to use an identity. This post will consider how we get the identity for sin(A+B):
sin(A+B) = sinAcosB+sinBcosA
Compound angle of A+B showing how they relate
From the definition of sin=opp/hyp we find
sin(A+B) = RT/OR
But sinceRT comprises of RS+ST
By David Woodford
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Just passing by.Btw, your website have great content!
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Making Money $150 An Hour
lol, right timing, published this guide on the day i learned it, and i didn’t get it at all.
First class site
I need aformula to determine the dimension of a compond angle I know hon to set the compond sine but for got the formula for dimensioning on sine plate
Thanks for visiting,
I’m not entirely sure what you mean by dimensioning on the sine plate
dave