1 . If x + 1x = 4, then what is the value of xx2 - 3x + 1/
Answer: Option D
Explanation:
Given that, x + 1/x = 4 (x2+1)/x=4
x2+1=4x
Now, x/(x2 - 3x + 1) = x/(x2 + 1 - 3x) = x/(4x - 3x) = x/x = 1
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