9000029307

SubArea:

Level:

Project ID:

9000029307

Accepted:

In the following list identify an inequality which holds for every

x \in R

- x^{4} - x^{2} \leq 0

x^{3} + 3 x^{2} + 3 x + 1 > 0

x^{4} + x^{2} + 1 < 0

- x^{3} + 6 x^{2} - 12 x + 8 > 0

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