1.

A square + b square + c square equal to a b + bc + ca then a + c y is equal to

Answer»

A² + b² + c² = AB + bc + ca

so, (a + B + C)² = a² + b² + c² +2(ab + bc + ca)
(a + b + c)² = a² + b² + c²+ 2(a² + b² + c²)
(a + b + c)² = 3(a² + b² + c²)
a + b + c = √(3(a² + b² + c²)



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