Trig identity proofs: sin(A+B) = sinAcosB + cosAsinB

in #education • 6 years ago

In this video I present this proof in the smallest steps possible. All you need to know to understand this are the basic trig rules sin(theta)=opposite/hypotenuse etc.

Posted from my blog with SteemPress : http://magicmonktutorials.com/blog/2018/10/21/trig-identity-proofs-sinab-sinacosb-cosasinb/

#mathematics #steemiteducation #steempress #steemstem
6 years ago in #education by
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     6 years ago 

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       6 years ago 

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