MathematicsEasy179×since 2002Q4205The function f(x)=∣x2−2x−3∣ . e∣9x2−12x+4∣f(x) = \left| {{x^2} - 2x - 3} \right|\,.\,{e^{\left| {9{x^2} - 12x + 4} \right|}}f(x)=x2−2x−3.e∣9x2−12x+4∣ is not differentiable at exactly :Afour pointsBthree pointsCtwo pointsDone pointCheck answerSkip