The sum of the solutions of the equation\[2{{\sin }^{-1}}\sqrt{{{x}^{2}}+x+1}+{{\cos }^{-1}}\sqrt{{{x}^{2}}+x}=\frac{3\pi }{2}\]is

The sum of the solutions of the equation\[2{{\sin }^{-1}}\sqrt{{{x}^{2

1.	The sum of the solutions of the equation\[2{{\sin }^{-1}}\sqrt{{{x}^{2}}+x+1}+{{\cos }^{-1}}\sqrt{{{x}^{2}}+x}=\frac{3\pi }{2}\]is
A.	0
B.	-1
C.	1
D.	2
Answer» C. 1

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The sum of the solutions of the equation\[2{{\sin }^{-1}}\sqrt{{{x}^{2}}+x+1}+{{\cos }^{-1}}\sqrt{{{x}^{2}}+x}=\frac{3\pi }{2}\]is

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