Which expression represents the difference quotient of the function f (x) = negative StartRoot 2 x EndRoot?
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[tex]\\ \sf\longmapsto f(x)=\sqrt{2x}[/tex]
Now
[tex]\\ \sf\longmapsto \dfrac{1}{-(\sqrt{2x+2h}-\sqrt{2x})}[/tex]
[tex]\\ \sf\longmapsto \dfrac{1}{-\sqrt{2x+2h}+\sqrt{2x}}[/tex]
Option D