if a² +b² + c²= (a+b+c)² then ab+ bc+ca=
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Answered by
2
Answer:
ab+bc+ca= ABC
it is easy to answer when the number is their
Answered by
1
Answer:
GIVEN THAT: a² + b² + c² = (a+b+c) ²
(a+b+c) ² = a² + b² + c² + 2(ab + bc + ca)
(a+b+c) ²= (a+b+c) ² + 2(ab + bc + ca)
2(ab + bc + ca) = (a+b+c) ² - (a+b+c) ²
2(ab + bc + ca) = 0
ab + bc + can = 0 ( ans)
HENCE 0 IS YOUR ANS
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