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Exact trigonometric values

In mathematics, the values of the trigonometric functions can be expressed approximately, as in cos ⁡ ( π / 4 ) ≈ 0.707 {\displaystyle \cos(\pi /4)\approx 0.707} , or exactly, as in cos ⁡ ( π / 4 ) = 2 / 2 {\displaystyle \cos(\pi /4)={\sqrt {2}}/2} . While trigonometric tables contain many approximate values, the exact values for certain angles can be…

Trigonometric numbers, Constructible values & Common angles

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Common angles

Trigonometric numbers

Constructibility

Constructible values

Non-constructibility of 1°

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Exact trigonometric values

Nodes48
Edges47
Triples1
Avg. degree1.96
Density0.041667
Components1

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displaystyle sin trigonometric cos angles circ sine values pi angle sqrt roots cosine expressed 45 constructible root number since one

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SubjectPredicateObjectConfidenceSrc
2 π / 17instance ofwhich means that the sines and cosines of angles0.80text

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