Question

rationalise 1/ 7 + √29​

Answer 1

$\frac{1}{7 + \sqrt{29} } \times \frac{7 - \sqrt{29} }{7 - \sqrt{29} } \\ = \frac{7 - \sqrt{29} }{(7)^{2} - ( \sqrt{29}) ^{2} } \\ = \frac{7 - \sqrt{29} }{49 - 29} \\ = \frac{7 - \sqrt{29} }{20}$