Question

if x=(root 2+root 3) find x2+1/x2

Answer 1

Step-by-step explanation:

x=2−3⇒x1=2−31=2+3

(x2+x21)=(x+x1)2−2=(2−3+2+3)2−2=14

(x2−x21)=(x−x1)(x+x1)=(4×−23)=−83