Question

Two classmates Rohan and Raj simplified two different expressions during the revision hour and explained to each other their simplifications. Rohan explains simplification of √2 +1 / √2-1 by rationalising the denominator and Raj explains the simplification of (√2+√3) (√2-√3) by using an identity. Answer the following questions .
1. After rationalising Rohan received the answer _________. ​

Answer 1

Answer:

sorry I not know answer

Step-by-step explanation:

please mark me brainlist

Answer 2

Answer:

$\frac{ \sqrt{2} + 1 }{ \sqrt{2} - 1}$

$( { \sqrt{2} + 1 })^{2} \div 1$

the answer is after rationalize

$3 + 2 \sqrt{2}$