Math, asked by padamatintisaikundan, 5 months ago

7-root5/7+root5 (explain method by method)​

Answers

Answered by SarthMhatre
1

Answer:

7-√5/7+√5

:. 7-5/7+5 × 7-5/7-5_______rationalising the denominator

:. (7-5)(7-5)/7^2-5^2____i)(a-b)(a+b)=a^2-b^2

:.49+5/49-5_____a×a=a

:.54/44

:. 27/22 is the answer.

Step-by-step explanation:

Rationalize the denominator :- to do this multiply the conjugate or opposite pair of denominator term by both th numerator and denominator.

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