cougar9754
28.01.2020 •
Mathematics
Complete the following equation: a2 = b2 + c2 -
2 bc cos a
2 ca cos b
2 ab cos c
none of the above
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Ответ:
2 bc cos A
Step-by-step explanation:
Cosine rule
Ответ:
Its simple addition, just do it one number at a time :)
Hope I helped! <3