Question

if x=13+2√3 then find x^2+1\x^2​

Answer 1

Answer:

if x=13+2√3 then find x^2+1\x^2

Step-by-step explanation:

if x=13+2√3 then find x^2+1\x^2if x=13+2√3 then find x^2+1\x^2if x=13+2√3 then find x^2+1\x^2if x=13+2√3 then find x^2+1\x^2if x=13+2√3 then find x^2+1\x^2if x=13+2√3 then find x^2+1\x^2if x=13+2√3 then find x^2+1\x^2if x=13+2√3 then find x^2+1\x^2if x=13+2√3 then find x^2+1\x^2if x=13+2√3 then find x^2+1\x^2if x=13+2√3 then find x^2+1\x^2if x=13+2√3 then find x^2+1\x^2if x=13+2√3 then find x^2+1\x^2

Answer 2

Answer:

x = 13+2 root

1/x = 1/13 + 2 root 3

= root 13-2 root 3 ( after rationalizing )

x-1/x = (root 13 + 2 root 3)(root 13-2 root 3)

x-1/x = root 13 + 2 root 3 - root 13-2 root 3

x-1/x = 2 root 3 + 2 root 3

x-1/x = 4 root 3 answer!

answer = x-1/x = 4 root 3

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