If (a-1)^2 +(b+2)^2 +(c+1)^2 =0, then the value of 2a-3b+7c will be - – McqOptions

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1.	If (a-1)^2 +(b+2)^2 +(c+1)^2 =0, then the value of 2a-3b+7c will be -
A.	1
B.	17
C.	-15
D.	0
Answer» B. 17

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