Answers

2014-04-04T10:43:12+05:30
Because sqrt of 2 is not imaginary or infinite and also we can divide it by any number except 0 and get a number in the real number plane.
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2014-04-04T15:02:53+05:30
A real no. is a no. which is negative as well as positive can be a whole no.or a decimal no. these are called real no.
so therefore, 2 is a real no. and comes in the cateogary of positive.
hopes this makes u understand properly.
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