trignometry multiple angle formulas
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0 30 45 60 90
sin 0 1/2 1/√2 √3/2 1
cos 1 √3/2 1/√2 1/2 0
tan 0 1/√3 1 √3 infinite
cot infinite √3 1 1/√3 0
cosec infinite 2 √2 2/√3 0
sec 0 2/√3 √2 2 infinite
sin 0 1/2 1/√2 √3/2 1
cos 1 √3/2 1/√2 1/2 0
tan 0 1/√3 1 √3 infinite
cot infinite √3 1 1/√3 0
cosec infinite 2 √2 2/√3 0
sec 0 2/√3 √2 2 infinite
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