MathematicsMedium175×since 2002Q2712The function, f(x) = (3x – 7)x^2/3, x ∈\in∈ R, is increasing for all x lying in :A(−∞,0)∪(37,∞)\left( { - \infty ,0} \right) \cup \left( {{3 \over 7},\infty } \right)(−∞,0)∪(73,∞)B(−∞,0)∪(1415,∞)\left( { - \infty ,0} \right) \cup \left( {{{14} \over {15}},\infty } \right)(−∞,0)∪(1514,∞)C(−∞,1415)\left( { - \infty ,{{14} \over {15}}} \right)(−∞,1514)D(−∞,1415)∪(0,∞)\left( { - \infty ,{{14} \over {15}}} \right) \cup \left( {0,\infty } \right)(−∞,1514)∪(0,∞)Check answerSkip