SOLUTION: If {{{1/x +1/y =10}}} and {{{x+y=2}}}, what is the value of xy?

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Question 1111870: If and , what is the value of xy?
Answer by ikleyn(52824)   (Show Source): You can put this solution on YOUR website!
.
If  ,  then    = 10.


Replace here (x+y) by 2, since it is given.


You will have   = 10,   which implies   xy =  = 0.2.

Solved.

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