Mathematics

Mathematics, 26.02.2021 14:00, mucciak8356

if a + b + c = 9 and a square + b square + c square = 35 the find the value of ab + bc + ca . I am in need of help

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if a + b + c = 9 and a square + b square + c square = 35 the find the value of ab + bc + ca . I am...

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