Sum and Difference Trig Identities
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6 Terms
1
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sin(a+b)=
sin(a)cos(b)+cos(a)sin(b)
2
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sin(a-b)=
sin(a)cos(b)-cos(a)sin(b)
3
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cos(a+b)=
cos(a)cos(b)-sin(a)sin(b)
4
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cos(a-b)=
cos(a)cos(b)+sin(a)sin(b)
5
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tan(a+b)=
tan(a)+tan(b)/1-tan(a)tan(b)
6
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tan(a-b)=
tan(a)-tan(b)/1+tan(a)tan(b)
Note 
Flashcards (33)