Question

if x=1/7+4√3 , then Find
a) x + 1/x
b) x²-(1/x²)
e √x +1/√x​

Answer 1

Answer:

Step-by-step explanation:

x=2−  

3

​  

⇒  

x

1

​  

=  

2−  

3

​  

 

1

​  

=2+  

3

​  

 

(x  

2

+  

x  

2

 

1

​  

)=(x+  

x

1

​  

)  

2

−2=(2−  

3

​  

+2+  

3

​  

)  

2

−2=14

(x  

2

−  

x  

2

 

1

​  

)=(x−  

x

1

​  

)(x+  

x

1

​  

)=(4×−2  

3

​  

)=−8  

3

​