File:Special right triangles for trig.svg
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Summary
Special right triangles in a unit circle are helpful for remembering trig functions of multiples of 30 and 45 degrees. This figure illustrates cos(30) = sin(60) = sqrt(3)/2, and implicitly sin(30) = cos(60) = 1/2 and sin(45) = cos(45) = sqrt(2)/2.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:17, 8 January 2017 | | 240 × 240 (5 KB) | 127.0.0.1 (talk) | Special right triangles in a unit circle are helpful for remembering trig functions of multiples of 30 and 45 degrees. This figure illustrates cos(30) = sin(60) = sqrt(3)/2, and implicitly sin(30) = cos(60) = 1/2 and sin(45) = cos(45) = sqrt(2)/2. |
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