zbior-wszystkich-liczb-rzeczywistych-spelniajacych-nierownosc-displaystyle-frac35-frac2x3ge-fracx6

A)

$\displaystyle \left[ \frac{9}{15},+\infty \right)$ \displaystyle \left[ \frac{9}{15},+\infty \right)

B)

$\displaystyle \left(-\infty, \frac{18}{25} \right]$ \displaystyle \left(-\infty, \frac{18}{25} \right]

C)

$\displaystyle \left[ \frac{1}{30},+\infty \right)$ \displaystyle \left[ \frac{1}{30},+\infty \right)

D)

$\displaystyle \left(-\infty, \frac{9}{5} \right]$ \displaystyle \left(-\infty, \frac{9}{5} \right]