if a+b+c=6,ab+bc+ca=11,then the value of a²+b²+c² is
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Given a+b+c = 6 , ab + bc + ca = 11
( a + b + c )² = a² + b² + c² + 2 (ab + bc + ca)
⇒ (6)² = a² + b² + c² + 2(11) ⇒ a² + b² + c² = 36-22 = 14
( a + b + c )² = a² + b² + c² + 2 (ab + bc + ca)
⇒ (6)² = a² + b² + c² + 2(11) ⇒ a² + b² + c² = 36-22 = 14
iswar7:
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mark brainliest
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