Question

write the rationalising factor √5+2​

Answer 1

Rationalising factor of √5-2 is √5+2

(√5-2)×(√5+2)=(√5

square -2square)

=5-4

=1

we can rationalise the term by using √5+2.

so,√5+2is the rationalising factor of√5-2.

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Answer 2

Answer:

1/√5+2

= 1/√5+2×√5-2/√5-2

= √5-2/ √5^2-2^2

=√5-2/5-4

= √5-2/1

=√5-2 is the ans

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