Question

If √2-1
2+
a +b v2, then find
the value of
3 marks
a and be



needs it answer fast please​

Answer 1

Answer:

Step-by-step explanation:

Correct option is

B

±2

x=3+2  

2

​

     

x

1

​

=  

3+2  

2

​

 

1

​

×  

3−2  

2

​

 

3−2  

2

​

 

​

 

=3−2  

2

​

 

(  

x

​

−  

2

​

 

1

​

)  

2

=x+  

x

1

​

−2

=3+2  

2

​

+3−2  

2

​

−2=4

So,  

x

​

−  

x

​

 

1

​

=  

4

​

=±2 Ans