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[1/(sqrt(2)+sqrt(3)-sqrt(5))+1/(sqrt(2)-...

`[1/(sqrt(2)+sqrt(3)-sqrt(5))+1/(sqrt(2)-sqrt(3)-sqrt(5))]` in simplified form equals (a) 0 (b) `1/(sqrt(2))` (c) 1 (c) `sqrt(2)`

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1/(sqrt(3)+sqrt(2))-2/(sqrt(5)-sqrt(3))-3/(sqrt(2)-sqrt(5))

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