If (x-{1 over x} )=5, then the value of (x ^4 )+ ({1 over x^4} ) . – McqOptions

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1.	If (x-{1 over x} )=5, then the value of (x ^4 )+ ({1 over x^4} ) .
A.	727
B.	772
C.	722
D.	277
Answer» B. 772

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