Question

If x=2+√3 then find the value of X2+1/X2

Answer 1

Answer:

the value of X2+1/X2 is 14

Step-by-step explanation:

x=2+√3

1/x=//(2+√3)

or, 1/x= 2-√3/(2+√3)(2-√3)

or, 1/x= 2-√3

X^2+1/X^2

= (x+1/x)^2 - 2x.1/x

=(4) ^2 -2

= 16-2

= 14

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