Math, asked by vipanakhadka2006, 5 months ago

the denominator do we obtain after rationalizing the denominator of 1 upon 7 root 5 - 5 root 7

Answers

Answered by Raftar62

1

Answer:

Rationalising

= 1/(7✓5-5✓7)

= 1/(7✓5-5✓7) × (7✓5+5✓7)/(7✓5+5✓7)

= (7✓5+5✓7)/(7✓5)² - (5✓7)²

= (7✓5+5✓7)/70 is answer

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