MathDB
Inequality

Source:

December 30, 2005
inequalities

Problem Statement

A positive number xx satisfies the inequality x<2x\sqrt{x} < 2x if and only if (A) x>14(B) x>2(C)x>4(D) x<14(E)x<4\text{(A)} \ x > \frac{1}{4} \qquad \text{(B)} \ x > 2 \qquad \text{(C)} x > 4 \qquad \text{(D)} \ x < \frac{1}{4}\qquad \text{(E)} x < 4
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