The value of \[{{a}^{2}}+{{b}^{2}}+{{c}^{2}}-ab+bc-ac+a\]for\[a=1,b=2\] and \[c=-1\] is

The value of \[{{a}^{2}}+{{b}^{2}}+{{c}^{2}}-ab+bc-ac+a\]for\[a=1,b=2\

1.	The value of \[{{a}^{2}}+{{b}^{2}}+{{c}^{2}}-ab+bc-ac+a\]for\[a=1,b=2\] and \[c=-1\] is
A.	2
B.	4
C.	7
D.	5
Answer» C. 7

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The value of \[{{a}^{2}}+{{b}^{2}}+{{c}^{2}}-ab+bc-ac+a\]for\[a=1,b=2\] and \[c=-1\] is

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