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To find the inverse function we write y=2/x and solve for x.
Hence the inverse function is `h^(-1)(x)=2/x`
The domain is D=`(-oo,0)U(0,oo)`
The function can never be equal zero, so R=`(-oo,0)U(0,oo)`
The following graph help explain why the function and its inverse are the same.
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