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3/2 o 1 1/2; (3x+1)/x; 1/x^2; x-2; (x+3)/(x-4).

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Same answer here. x^2 is same with x^2/1.,so its reciprocal is 1/(x^2)

in the same manner, the reciprocal of 1/x-2 is x-2/1 or simply say x-2.
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