Question

if,
$if (x + 1 |x) = 5 find \: the \: value \: of( {x}^{2} + 1 | {x}^{2} )and \: ( {x}^{4} + 1 | {x}^{4} )$
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Answer 1

Answer:

given,

X + 1/X = 5,

squaring in both sides,

=> X ^2+ 1/X^2+2 = 25,

=>X^2+ 1/X^2 = 23,

again squaring on both sides,

=>X^4+ 1/X^4 + 2 = 529,

=> X^4+ 1/X^4 = 527.