Math, asked by Usaha65ambitious, 6 months ago

If a + b + c = 21 and a2 + b2 + c2 = 155, then the value of (ab + bc + ca) is

Answers

Answered by MrAadil

8

Answer:

143

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Answered by preet123456789

2

Answer:

here is ur ans ❤❤⭐

143

hope it helps u ❤❤⭐⭐

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