幾題數學(原文喔)

1.Find constants A and B so that sin^3 (X) = A sin(3X) B sin(X)2.Show that the three lines found in Problem 10 intersect at the same point.Find the coordinates of this point.Is this the same point where the three medians meet?3.If an object is shot upward from the ground with an linitial velocity of 256 ft/sec

its distance in feet above the ground at the end of t seconds is given by s(t)=256t-16t^2(neglecting air resistance).What is the highest point for this proiectile?4.Solve