Question

rationalise root 2 +1/root 2-1​

Answer 1

Answer:

2 is the correct answer

Step-by-step explanation:

√2+1 ÷ √2-1

= √2/√2

= 2

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Answer 2

Answer:

3+2(sqrt2)

Step-by-step explanation:

We have to rationalise denominater so multiply it by root2+1/root2+1

Then use the formulas [ (a+b) ^2] and for the denominator use[ (a+b) (a-b) =a^2-b^2] hope you will understand the solution from the attached pic