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If x = (2)/(3) and y = (3)/(4), then a r...

If `x = (2)/(3)` and `y = (3)/(4)`, then a rational number `(x-y)^(-1)+(x^(-1)- y^(-1))` is equal to

A

`2/3`

B

`- 71/2`

C

`- 71/12`

D

`1/6`

Text Solution

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The correct Answer is:
C
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