If (5.55)x=(0.555)y=1000(5.55)^x = (0.555)^y = 1000(5.55)x=(0.555)y=1000, then the value of 1x−1y\frac{1}{x} - \frac{1}{y}x1−y1 is
13\frac{1}{3}31
3
1
23\frac{2}{3}32
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