Answers

2016-04-19T21:15:58+05:30
X >0 x can be any value from zero to infinity
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2016-04-19T22:43:29+05:30
X² > 0

Equating x² = 0, we get x = 0. By marking 0 on number line, we get the sign scheme as positive on both sides, since the power of x is even.

∴x ∈ (-∞, ∞)     or      x ∈ R

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