Question

Write the rationalisation factor of √5-2.

Answer 1

Answer:

Rationalisation factor is the number, multiplying by which we can apply the identity of a^2 - b^2 to the obtained number.

Answer: √5 + 2

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Answer 2

Heya!!

It's rationalising factor is √5+2

Here we will use the identity a square - b square.

And finally we will have the denominator as a rational number.

ans will be

1