The maximum value of \( y=\sqrt{(x-3)^{2}+\left(x^{2}-2\right)^{2}}-\sqrt{x^{2}+\left(x^{2}-1\ri...

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The maximum value of \( y=\sqrt{(x-3)^{2}+\left(x^{2}-2\right)^{2}}-\sqrt{x^{2}+\left(x^{2}-1\right)^{2}} \) is
(A) 3
(B) \( 2 \sqrt{5} \)
(C) \( \sqrt{10} \)
(D) none of these
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