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Trigonometry

ບັນຫາທີ່ຄ້າຍຄືກັນຈາກWeb Search

https://math.stackexchange.com/questions/605159/how-find-cos-pi-a-if-a-is-orthogonal-matrix
https://math.stackexchange.com/q/2829065
https://socratic.org/questions/what-is-the-value-of-cos-pi

ແບ່ງປັນ

-1
Get the value of \cos(\pi ) from trigonometric values table.

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