Question

If x = -
3−√13
2
what is the value of x2 + 1/x2 ?

Answer 1

Answer:

Given that, x=

2

3−

13

​

​

 

∴  

x

1

​

=

3−

13

​

2

​

           [Taking reciprocal on both sides]

We know that, (a+b)

2

=a

2

+b

2

+2ab

∴ (x+

x

1

​

)

2

=x

2

+

x

2

1

​

+2

⇒x

2

+

x

2

1

​

=(x+

x

1

​

)

2

−2

Step-by-step explanation: