- Bất phương trình logarit - Có video chữa

A x < $\dpi{100} \frac{1}{2}$

B $\dpi{100} \frac{1}{3}\leq x$

C $\dpi{100} \frac{1}{3}$ < x < $\dpi{100} \frac{1}{2}$

D $\dpi{100} \frac{1}{3}\leq x$ < $\dpi{100} \frac{1}{2}$

A x < $\dpi{100} \sqrt{10}$

B x $\dpi{100} \geq \sqrt{10}$

C x > $\dpi{100} \sqrt{10}$

D x $\dpi{100} \leq \sqrt{10}$

A x > 9

B $\dpi{100} \left [ \begin{matrix} x>9 & \\ 0 < x < 1 & \end{matrix}$ (Chú ý : chữ gt nghĩa là dấu > ; chữ lt là dấu < )

C 0 < x < 1

D x < 1 hoặc x > 9