what is a2 +b2 +c2 = _________
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Answer:
a2+b2+c2= (a+b+c) 2 =a2+b2+c2(ab)(bc)(ca)
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Step-by-step explanation:
→ a² + b² + c² = ( a + b + c ) ²
→ (a + b + c) ² = a² + b² + c² + 2ab + 2bc + 2ca
- (a + b + c) ² - 2ab - 2bc - 2ca
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