What is the dot product of vectors A=[2, -3] and B=[4, 5]?
+
Math question for finding the length of an angle bisector: Given a triangle ΔABC with angle C bisected by line segment AD, if AB = 8cm, AC = 12cm, and BD = 6cm, find the length of CD.
+
Math question: What is the 3rd degree derivative of f(x) = 2e^(3x) – cos(5x)?