If for non-zero x, x²-4x-1=0 the value of x²+1/x² is

  1. 4
  2. 18
  3. 10
  4. 12
Anurag Mishra Professor Asked on 11th December 2015 in Maths.
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1 Answer(s)

Answer:  (2) 18 

Anurag Mishra Professor Answered on 11th December 2015.
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