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Trig--"The Chart"
Reference angle values to memorize for sine, cosine, and tangent
Question | Answer |
---|---|
sin 0 | 0 |
sin 30 | 1/2 |
sin 45 | (radical 2)/2 |
sin 60 | (radical 3)/2 |
sin 90 | 1 |
cos 0 | 1 |
cos 30 | (radical 3)/2 |
cos 45 | (radical 2)/2 |
cos 60 | 1/2 |
cos 90 | 0 |
tan 0 | 0 |
tan 30 | (radical 3)/3 |
tan 45 | 1 |
tan 60 | radical 3 |
tan 90 | undefined |