1.

$\frac{\sqrt{7}-\sqrt{5}}{\sqrt{7}+\sqrt{5}}+\frac{\sqrt{7}+\sqrt{5}}{\sqrt{7}-\sqrt{5}}$ is equal to :1). 122). $6\sqrt{35}$3). 64). $2\sqrt{35}$

Answer» OPTION 1 : 12 is CORRECT


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