What is 7 x 3-5-21-5-35-3-21-35-21-25-

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What is 7 x 3...

Question

What is 7 x 3/5?

21/5

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35/3

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21/35

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21/25

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\frac{3 \sqrt{2} - 2 \sqrt{3}}{3 \sqrt{2} + 2 \sqrt{3}} + \frac{\sqrt{12}}{\sqrt{3} - \sqrt{2}}

\frac{5 + \sqrt{3}}{5 - \sqrt{3}} + \frac{5 - \sqrt{3}}{5 + \sqrt{3}}

\frac{7 + 3 \sqrt{5}}{3 + \sqrt{5}} + \frac{7 - 3 \sqrt{5}}{3 - \sqrt{5}}

\frac{1}{2 + \sqrt{3}} + \frac{2}{\sqrt{5} - \sqrt{3}} + \frac{1}{2 - \sqrt{5}}

\frac{2}{\sqrt{5} + \sqrt{3}} + \frac{1}{\sqrt{3} + \sqrt{2}} + \frac{3}{\sqrt{5} + \sqrt{2}}

\frac{5}{3}

\frac{35}{21}

1. $\frac{13}{25}$ from $\frac{4}{5}$

2. $\frac{1}{7}$ from $\frac{21}{35}$
$[3]$

(\frac{3}{5} \div \frac{21}{35}) \div \frac{7}{5}

Q 21 . I f N = \frac{\sqrt{15} + \sqrt{35} + \sqrt{21} + 5}{\sqrt{3} + 2 \sqrt{5} + \sqrt{7}}, t h e n {(2 N - \sqrt{3})}^{2} - 7 i s e q u a l t o : (A) 2 (B) 3 (C) 0 (D) 1

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