Question

find a and b :- 7+3√5/3+√5 - 7-3√5/3-√5=a+5√b

Answer 1

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HERE IS YOUR ANSWER

⇒(7+3√5) / (3+√5) + (7-3√5) / (3-√5)

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

⇒ ( 21-7√5 + 9√5 -15+ 21 + 7√5 - 9√5 -15)

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(3)² - (√5)²

⇒ 12 / 9-5

⇒ 12/4

⇒ 3

ON COMPARING

WE WILL GET

A= 3 , B=0

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