વિધેય $f(x)=(3x-7)x^{2/3}, x \in R,$ એ તમામ $x$ માટે વધતું વિધેય છે જે

  • A
    $(-\infty, 0) \cup \left(\frac{3}{7}, \infty\right)$
  • B
    $(-\infty, 0) \cup \left(\frac{14}{15}, \infty\right)$
  • C
    $\left(-\infty, \frac{14}{15}\right)$
  • D
    $\left(-\infty, -\frac{14}{15}\right) \cup (0, \infty)$

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