Question

Rational and Irrational Numbers
11. Rationalise the denominator and write the conjugate irrational number of each of the following


√2-1
√2+1​

Answer 1

Answer:

⇢

2

+1

2

−1

⇢

2

+1

2

−1

×

2

−1

2

−1

⇢

(

2

)

2

−(1)

2

2−

2

−

2

+1

⇢

1

3−2

2

⟹

3−2

2

\therefore answer is 3-2 /2