5. If a² +b²+c² + 3 = 2 ( a + b + c) then the value of a + b + c is
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Answered by
2
Answer:
3
Step-by-step explanation:
a^2+b^2+c^2+3–2a-2b-2c=0
(a^2–2a+1)+(b^2–2b+1)+(c^2–2c+1)=0
(a-1)^2+(b-1)^2+(c-1)^2=0
(a-1)^2=0…
a=1,b=1,c=1
a+b+c=3
Answered by
0
Answer:
=2(a+b+c)
Then 2×a,2×b,2×c
it means that the value of a² b²c² is 2
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