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Find all solutions of the equation.Select the correct answer, where k is any integer:

Find the degree measure of the angle: .

Plot the point that has the polar coordinates .

Use an addition or subtraction formula to simplify the following equation. Then find all the solutions in the interval .sin 4 x cos 3 x – cos 4 x sin 3 x = 0

Find the center of mass of the given system of point masses.   mi 10 8 10

A cylindrical gasoline tank is placed so that the axis of the cylinder is horizontal. Find the fluid force on a circular end of the tank if the tank is half full, assuming that the diameter is feet and the gasoline weighs 42 pounds per cubic foot.  

Use the disk or shell method to find the volume of the solid generated by revolving the region in the first quadrant bounded by the graph of the equation about the given line. (i) the x-axis; (ii) the y-axis  

Find the Maclaurin series for the function .  

Evaluate using the formula where k is a real number, n is a positive integer, and .  

Find the cubic function of the form where and the coefficients are real numbers, which satisfies the conditions given below. ​ Relative maximum: Relative minimum: Inflection point: ​