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chwala
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Homework Statement
show that if ##x## is rational and ##y## is irrational, then ## x+y## is irrational. Assume that ##x## is irrational and that ##y## is also irrational. Is ##xy## irrational?
Homework Equations
The Attempt at a Solution
lol
##{1/2} +{√2}## [/B]is irrational.
##{{1/√2}}×{√2}=2 ## which is rational and therefore not irrational
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