Question

if the value of a+b+c=10and ab+bc+can=8 then find a²+b²+c²​

Answer 1

84 is answer.

⇒ a + b + c = 10

Square on both sides:

⇒ (a + b + c)² = 10²

⇒ a²  + b² + c² + 2(ab + bc + ca) = 100

⇒ a²  + b² + c² + 2(8) = 100

⇒ a²  + b² + c² = 100 - 16

⇒ a²  + b² + c² = 84

BrainlyPrince007

Answer 2

Answer:

84

Step-by-step explanation:

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