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Solve 6^3x+1 = 2^ 2x-3? Write the partial fraction of (2x^3-1)/(x^3+x).? The linear density in a rod 8 meters long is 12/\sqrt{x+1} kg/m, where x is measured in meters from one end of the rod. Find average density? If a baseball s velocity is increased to four times its original velocity, by what factor does its kinetic energy increase? Find the area of the region enclosed by the curves
y=e^x, y=e^3x, x=0, x=ln3?