Question

if x=3+2√2 so find x^2 - 1/x^2​

Answer 1

Answer:

so answer =34

hope it helps you

Answer 2

Answer:

x^2-1/x^2=24√2

Step-by-step explanation:

if,x=3+2√2

1/x=1/3+2√2

=1(3-2√2)/(3+2√2)(3-2√2)

=3-2√2/(3)^2-(2√2)^2=(3-2√2)/9-8

=3-2√2/1=3-2√2

x+1/x=3+2√2+3-2√2=6

x-1/x=3+2√2-3+2√2=4√2

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

=6×4√2

=24√2

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