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3(a2 + b2 + c2) = (a + b + c)2 then the relation between a, b and c is ?
Answer & Solution
Correct Answer:
Option
D
Always do these types of question with the help of,
$$\eqalign{ & {\text{Put }}a = b = c = 1 \cr & {\text{3}}\left( {{a^2} + {b^2} + {c^2}} \right) = {\left( {a + b + c} \right)^2} \cr & 3 = 3{\text{ Satisfied}} \cr & {\text{So, this is answer}} \to a = b = c \cr} $$
$$\eqalign{ & {\text{Put }}a = b = c = 1 \cr & {\text{3}}\left( {{a^2} + {b^2} + {c^2}} \right) = {\left( {a + b + c} \right)^2} \cr & 3 = 3{\text{ Satisfied}} \cr & {\text{So, this is answer}} \to a = b = c \cr} $$
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