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common identity tri.

30-60-90 triangle & 45-45-90 triangle identities

QuestionAnswer
sin 30 1/2
sin 45 √2/2
sin 60 √3/2
cos 30 √3/2
cos 45 √2/2
cos 60 1/2
tan 30 √3/3
tan 45 1
tan 60 √3
csc 30 2
csc 45 √2
csc 60 2√3/3
sec 30 2√3/3
sec 45 √2
sec 60 2
cot 30 √3
cot 45 1
cot 60 √3/3
Created by: nbreau
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