Question
If {x + (1/x)} = 4, then find the value of
{x2Â + (1/x2)}Solution
Given; {x + (1/x)} = 6 On squaring both sides, we have; {x + (1/x)}2 = 62 Or, {x2 + (1/x)2 + 2 × x × (1/x)} = 36 So, {x2 + (1/x)2} = 24
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