Question

rationalise the denominator 1/1-√7 plss solve this answer step by step​

Answer 1

Step-by-step explanation:

$\frac{1}{1 - \sqrt{7} } = \frac{1}{1 - \sqrt{7} } \times \frac{1 + \sqrt{7} }{1 + \sqrt{7} } = \frac{1 + \sqrt{7} }{ {1 }^{2} - { \sqrt{7} }^{2} } = \frac{1 + \sqrt{7} }{1 - 7 } = - \frac{(1 + \sqrt{7)} }{6}$