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If \(a > b > 0,\) then \(\sqrt{a^2-b^2}=\)
A. \(a+b-\sqrt{2ab}\)
B. \(a-b+\sqrt{2ab}\)
C. \(\sqrt{(a-b)^2-2ab}\)
D. \((\sqrt{a+b})(\sqrt{a-b})\)
E. \((\sqrt{a}+\sqrt{b})(\sqrt{a}-\sqrt{b})\)
Answer: D
Source: GMAT Prep
A. \(a+b-\sqrt{2ab}\)
B. \(a-b+\sqrt{2ab}\)
C. \(\sqrt{(a-b)^2-2ab}\)
D. \((\sqrt{a+b})(\sqrt{a-b})\)
E. \((\sqrt{a}+\sqrt{b})(\sqrt{a}-\sqrt{b})\)
Answer: D
Source: GMAT Prep
