Question
$MF#%\left(\sqrt{7} - \dfrac{1}{\sqrt{7}}\right)^2\text{ simplifies to:}$MF#%
$MF#%\left(\sqrt{7} - \dfrac{1}{\sqrt{7}}\right)^2\text{ simplifies to:}$MF#%
Answer: Option C
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Answer : Option C
Explanation :
$MF#%\left(\sqrt{7} - \dfrac{1}{\sqrt{7}}\right)^2 = \left(\sqrt{7}\right)^2 - 2 \times \sqrt{7} \times \dfrac{1}{\sqrt{7}} + \left(\dfrac{1}{\sqrt{7}}\right)^2 \\\\ = 7 - 2 + \dfrac{1}{7} = 5 + \dfrac{1}{7} = \dfrac{36}{7}$MF#%
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