Question

12
If x= 3 +2√2, find the value of x^2+1/x^2​

Answer 1

Step-by-step explanation:

x = 3 + 2root2

then 1/x= 1/3+2root2

=3 - 2root2/9-8= 3-2root2

and we know that (x+1/x)"2=x^2 + 1/x^2 +2

putting value of x and 1/x

we get 36=req value +2

which implies that your answer is 34.

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