X square +1/x squre equal to 102 then find X - 1 upon x
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Step-by-step explanation:
x²+1/x² = 102
=> x² + 1/x² + 2- 2 =102
=>(x-1/x)² +2 = 102
=> (x-1/x)² = 100
=>(x-1/x) = 10
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