Math, asked by aryasridevi78, 24 days ago

7+3√5 / 7-3√5 = a + b√5

Answers

Answered by theerdhaprince

0

Answer:

7 + 3√5/ 7 - 3√5

= (7 + 3√5)(7 + 3√5) / (7- 3√5)(7+ 3√5)

= (7 + 3√5)² / 7² - (3√5)²

= 7² + (3√5)² + 2 × 7 × 3√5 / 49 - 45

= 49 + 45 + 42√5 / 4

= 94 + 42√5 /4

Answered by ranamayank428

0

Answer:

please flow me and mark me as brain list

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