Question

if X = 2 +√3, find the value of x² + 1/x²​

Answer 1

Answer: = 14

Step-by-step explanation:

x=2+$\sqrt$3 is given & find the value $x^{2}$ + 1/

       1/x= 1/2+$\sqrt$3*2-

            = 2-$\sqrt$3

x+1/x = 2+$\sqrt$3+2-

x+1/x = 4

squaring on both side

(x+1/x)^2 = 4^2

$x^{2}$ + 1/

$x^{2}$ + 1/

$x^{2}$ + 1/