Question

in the following determine rational number a and b:

Answer 1

√3-1/√3+1

√3-1 ×√3-1
---------
√3+1 ×√3-1

(√3-1) ²
---------------------
√3²-12

3+1-2√3
-------------
3-1

4-2√3
-----------
2

2(2-√3)
------------
2

2-√3

a=2
b=1