यदि a^2 + b^2 + c^2 = 2(a-b-c) -3 हो तो a+b+c का म – McqOptions

MCQOPTIONS

1.	यदि a^2 + b^2 + c^2 = 2(a-b-c) -3 हो तो a+b+c का मान होगा -
A.	-4
B.	-1
C.	6
D.	9
Answer» C. 6

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