Question

不等式方程,超简单!谢谢大家了使之大于等于1 求解,多谢大家了还有3+5/(2x^2-1)≥1

Answer 1

3+5/(1-2x²)≥1

2+5/(1-2x²)≥0

(7-4x²)/(1-2x²)≥0

(x+√7/2)(x-√7/2)/(x+√2/2)(x-√2/2)≥0

x≤-√7/2或-√2/2