If a+b+c=6 and ab+bc+ca=11, find the value of a2 + b2 + c2
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If a+b+c=6 and ab+bc+ca=11, find the value of a2 + b2 + c2
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Step-by-step explanation:
a² + b² + c² = (a + b + c)² - 2(ab + bc + ca)
= (6)² - 2(11)
= 36 - 22
= 14
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