Question

if (a+b+c) =15 and
(ab+bc+ca) =74 then value of
(a^2+b^2+c^2) is​

Answer 1

Answer:

Okay so,

a+b+c = 15

suppose: a=5, b=5, c=5

than, ab+bc+ca = 75

so, a²+b²+c² = 75

Answer 2

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