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51 terms

Trig Ratios

Intended for memorizing important trig ratios. Includes 30°, 45°, 60° families. Examples: >> tan90° = undefined >> sin30° = 1/2 >> tan30° = root3/3 Pre-Cal 30S
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0
sin0°
1
sin90°
0
sin180°
-1
sin270°
0
sin360°
1/2
sin30°
1/2
sin150°
-1/2
sin210°
-1/2
sin330°
root2/2
sin45°
root2/2
sin135°
-root2/2
sin225°
-root2/2
sin315°
root3/2
sin60°
root3/2
sin120°
-root3/2
sin240°
-root3/2
sin300°
1
cos0°
0
cos90°
-1
cos180°
0
cos270°
1
cos360°
root3/2
cos30°
-root3/2
cos150°
-root3/2
cos210°
root3/2
cos330°
root2/2
cos45°
-root2/2
cos135°
-root2/2
cos225°
root2/2
cos315°
1/2
cos60°
-1/2
cos120°
-1/2
cos240°
1/2
cos300°
0
tan0°
undefined
tan90°
0
tan180°
undefined
tan270°
0
tan360°
root3/3
tan30°
-root3/3
tan150°
root3/3
tan210°
-root3/3
tan330°
1
tan45°
-1
tan135°
1
tan225°
-1
tan315°
root3
tan60°
-root3
tan120°
root3
tan240°
-root3
tan300°