Hey, Please Find the answer for question Number 8
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Its answer is 14........
WhatTheExams:
how
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Square on both side...
(x+1/x)2=(4)2
x2+1/x2+2.x.1/x=16
x2+1/x2=16-2
x2+1/x2=14
(x+1/x)2=(4)2
x2+1/x2+2.x.1/x=16
x2+1/x2=16-2
x2+1/x2=14
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