Table of sine values
Grade 9Values of sin α for the standard angles from 0° to 360°.
| α | 0° | 30° | 45° | 60° | 90° | 120° | 180° | 270° | 360° |
|---|---|---|---|---|---|---|---|---|---|
| sin α | 0 | 1/2 | √2/2 | √3/2 | 1 | √3/2 | 0 | -1 | 0 |
Table of Sine, Cosine, Tangent and Cotangent Values
Reference tables of sine, cosine, tangent and cotangent for the standard angles 0°, 30°, 45°, 60°, 90°, 120°, 180°, 270° and 360°, plus the same angles in radians. It is enough to learn the first quarter (0°–90°) — the rest follows from symmetry.
All 5 formulas on this page
Table of cosine values
Grade 9Values of cos α for the standard angles from 0° to 360°.
| α | 0° | 30° | 45° | 60° | 90° | 120° | 180° | 270° | 360° |
|---|---|---|---|---|---|---|---|---|---|
| cos α | 1 | √3/2 | √2/2 | 1/2 | 0 | -1/2 | -1 | 0 | 1 |
Table of tangent values
Grade 9Values of tan α for the standard angles from 0° to 360°.
| α | 0° | 30° | 45° | 60° | 90° | 120° | 180° | 270° | 360° |
|---|---|---|---|---|---|---|---|---|---|
| tg α | 0 | 1/√3 | 1 | √3 | — | -√3 | 0 | — | 0 |
Table of cotangent values
Grade 9Values of cot α for the standard angles from 0° to 360°.
| α | 0° | 30° | 45° | 60° | 90° | 120° | 180° | 270° | 360° |
|---|---|---|---|---|---|---|---|---|---|
| ctg α | — | √3 | 1 | 1/√3 | 0 | -1/√3 | — | 0 | — |
Table of angles in radians
Grade 9Correspondence between standard angles in degrees and radians.
| α | 0° | 30° | 45° | 60° | 90° | 120° | 180° | 270° | 360° |
|---|---|---|---|---|---|---|---|---|---|
| α (рад) | 0 | π/6 | π/4 | π/3 | π/2 | 2π/3 | π | 3π/2 | 2π |
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