A 4
B 3
C 2
D 1
Correct Answer: Option D
x + 1/x = 4বা, (x2 + 1)/x = 4বা, x2 + 1 = 4x
এখন,x/(x2 - 3x + 1) = x / (4x - 3x) = x/x = 1
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