klimenkov
Can somebody explain why this answer was not correct?
(picture in the comments)



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klimenkov
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experimentX
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should be none ...

klimenkov
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I tried to complete one of the tests in GRE.

experimentX
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great!!! general math shouldn't be difficult.

klimenkov
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But I cant understand is this my mistake or not?

experimentX
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I don't understand either ... E.
I and II are both correct

shubhamsrg
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general solution is x<=0
So, it should be I and II combined.

nitz
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right,,,,,,,,,,,its 1 and 2 combined