if a + b + C is equal to 9 and a b + BC + C is equal to 40 then find a square + b square + c square
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(a+b+c) ^2 =a^2 +b^2 +c^2 +2(ab+bc+ca)
9^2 =a^2 +b^2 +c^2 +2*40
81-80=a^2 +b^2 +c^2
a square +b square +c square =1
Hope it helps
If yes please mark brainliest
9^2 =a^2 +b^2 +c^2 +2*40
81-80=a^2 +b^2 +c^2
a square +b square +c square =1
Hope it helps
If yes please mark brainliest
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