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cosA = (b^2 + c^2 - a^2)/(2bc) À̹ǷÎ,

A = arccos((b^2 + c^2 - a^2)/(2bc)) ÀÌ µÈ´Ù.

*** Âü°í¹®Çå[References] ***

http://blog.naver.com/nv_science/220783363886
A = arccos((b^2 + c^2 - a^2)/(2*b*c))
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º¯¼ö¸í Variable º¯¼ö°ª Value º¯ ¼ö ¼³ ¸í Description of the variable


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    sunflower
    [2017-05-07 13:56:58]
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