Method and examples
Method
1. If `x+1/x=2` then find `x^2+1/x^2`

1. If = then find
  1. If `x+1/x=2` then find `x-1/x`
  2. If `x+1/x=2` then find `x^2+1/x^2`
  3. If `x-1/x=6` then find `x^2+1/x^2`
  4. If `x-1/x=6` then find `x^2-1/x^2`
  5. If `x-1/x=6` then find `x^3+1/x^3`
  6. If `x-1/x=6` then find `x+1/x`
  7. If `x^2+1/x^2=23` then find `x+1/x`





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