2 cos^2 x +3 cos x +1 =0
Solve on the interval (0,2pi)

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =

The complement of an angle is one-sixth the measure of the supplement of the angle. what is the measure of the complement angle?