|x^2+y^2|=0.1 and |x-y|=0.2 then find |x|+|y|=?
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So given: and . Question:
So given: and . Question: Square to get rid of modulus --> , as then ;
So given: and . Question: Square to get rid of modulus --> , as then ;Square --> , as and (note that 2xy is posiitve, so 2|xy|=2xy) then -->
so, answer = 4/10
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