If x=4-√15 Then Find x+1/x=?
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= ( 4 + 1 - root 15)/( 4 - root 15)
= After rationalizing the denominator, we get
= ( 20+5root15-4root5-15 )/(16-15)
= ( 5 + root15 )/( 1 )
= 5 + root 15
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