Question

the rationalisation factor of 2+under root 3 is
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Answer 1

Step-by-step explanation:

Rationalization factor of a number is a number whose product with given number gives a rational number. Here we get a rational number when √2 - √3 is multiplied with √2 + √3 . Therefore, Rationalization factor of √2 + √3 is √2 - √3.

Answer 2

Answer:

Rationalizing factor of 2+√3 is 2-√3

Step-by-step explanation:

(2+√3)×(2-√3)

[using identity (a+b)(a-b)= a²-b²]

(2+√3)(2-√3)= (2)²-(√3)²

= 4-3

= 1

1 is an rational no.

Hence Proved

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