Question

help me please.......​

Answer 1

Step-by-step explanation:

$\sqrt{ \frac{(2 \times \frac{9}{ 7 } - \frac{16}{9}) }{(2 \times \frac{7}{16} - \frac{7}{9} ) } } \\ = \sqrt{ \frac{400}{49} } \\ = \frac{20}{7}$

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