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Trig Review
Question | Answer |
---|---|
sin^2x+cos^2x | 1 |
cot^x+1 | csc^2x |
tan^2x+1 | sec^2x |
sinx / cosx | tanx |
cos2x | cos^2x-sin^2x |
sin2x | 2sinxcosx |
sin30 | 1/2 |
sin45 | √ 2/2 |
sin60 | √ 3/2 |
cos30 | √ 3/2 |
cos45 | √ 2/2 |
cos60 | 1/2 |
tan30 | √ 3/3 |
tan45 | 1 |
tan60 | √ 3 |