Question

if x= (2+√3), find the value of (x²+1/x²)

Answer 1

Answer of this question

Answer 2

Hey mate here is my answer p,ease mark me as brainlist

if x= 2+sqrt3

then

1/x=2-sqrt3 (by rationaliztion)

then (x+1/x)^2 = X^2+(1/X)^2 +2*x*(1/X)

that is (2+sqrt3 +2-sqrt3)^2=x^2 +(1/x)^2+2

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

i.e, 14 is the answer