Question

If a=√2+1/√2-1 and b=√2-1/√2+1,then find the value of a+b

Answer 1

Answer:

6

Step-by-step explanation:

a=(√2+1/√2-1)*(√2+1/√2+1). Rationalise the denominator

a=2+1+2√2/2-1

=3+2√2

The same way if you multiply √2-1/√2+1 with √2-1/√2-1 , you will get 3-2√2

a+b=3+2√2+3-√2

= 3+3 =6