if a b c 6 a3 b3 c3 3abc 342 then what is the value of ab bc ca | Examsbook

365

Q:
If a + b + c = 6, a³ + b³+c³-3abc=342, then what is the value of ab + bc + ca?

1
5
2
8
3
-7
4
-5

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Answer : 3. "-7 "

Maths Algebra Question with answer

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