C^2cos^2 B+ b^2cos^2 C + bc cos (B - C) = 1/2(a^2+b^2+ c^2)

asked Jun 5, 2022 207k views

4 votes

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10 votes

Answer:

me vale

Explanation:

spanish hgjddjzfurdoydoydotroyd6odo6eoyeoydtodyodo6do55od5od5odo5dtodtofpydypff6

Hunghd answered Jun 11, 2022

3.3k points

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