If \[\int_{{}}^{{}}{\ln ({{x}^{2}}+x)dx=x\ln ({{x}^{2}}+x)+A}\], then \[A=\] [MP PET 1992]

If \[\int_{{}}^{{}}{\ln ({{x}^{2}}+x)dx=x\ln ({{x}^{2}}+x)+A}\], then

1.	If \[\int_{{}}^{{}}{\ln ({{x}^{2}}+x)dx=x\ln ({{x}^{2}}+x)+A}\], then \[A=\] [MP PET 1992]
A.	\[2x+\ln (x+1)+\]constant
B.	\[2x-\ln (x+1)+\]constant
C.	Constant
D.	None of these
Answer» E.

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If \[\int_{{}}^{{}}{\ln ({{x}^{2}}+x)dx=x\ln ({{x}^{2}}+x)+A}\], then \[A=\] [MP PET 1992]

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