Question

please help me in solving my problem. Solve only question no. 4​

Answer 1

$\cot( \alpha ) \frac{24}{7} \\ \\ = \sqrt\frac{1 - \frac{24}{7} }{1 + \frac{24}{7} } = \frac{1}{7 } \\ \\ = \sqrt \frac{ \frac{7 - 24}{7} }{ \frac{7 + 24}{7} } = \frac{1}{7} \\ \\ = \sqrt \frac{ \frac{ - 17}{7} }{ \frac{31}{7} } = \frac{1}{7} \\ \\ = \sqrt \frac{ - 17}{31} = \frac{1}{7}$

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