Samyukta Samyukta

24-10-2021
Mathematics

contestada

Rationalise I) 6/√5+√2
ii) 1/8+5√2

Relax

Respuesta :

VirαtKσhli VirαtKσhli

24-10-2021

Given :

6/√5+2
1/8+5√2

To find :-

The denominator in rationalized form .

Solution :-

Using Identity :-

a² - b² = (a+b)(a-b)

Solution 1:-

6/√5+2
6(√5-2)/(√5+2)(√5-2)
6(√5-2)/√5²-2²
6(√5-2)/5-4
6√5 - 12

Solution 2:-

1/8+5√2
1(8-5√2)/(8+5√2)(8-5√2)
8-5√2/8²-(5√2)²
8-5√2/64-50
8-5√2/14

Answer Link

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