Solution: Let $ y = rac3t4 - t^2 $. For $ t > 2 $, denominator $ 4 - t^2 < 0 $, so $ y < 0 $. Rewrite $ y = rac3t-(t^2 - 4) = -rac3t(t - 2)(t + 2) $. Let $ t = 2 + \epsilon $, $ \epsilon > 0 $, but instead, analyze $ y $: as $ t o 2^+ $, $ y o -\infty $; as $ t o \infty $, $ y o 0^- $. The minimum value of - Nelissen Grade advocaten