if a square + b square + c square equals to 20 and a + b + c is equals to zero so a + b + BC + AC will be
thnks mt do adi -;-
btw thnku✨✌
gm and tc bye :)
Answers
Answered by
0
Explanation:
( a+ b + c) 2 = a2 + b2 + c2 + 2 ( ab + bc + ac)
ab + bc + ac = --20 / 2 = -10 ans.
Similar questions