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Statement of a problem № 3404

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Find the resultant of the vibrations y1 = cos wt , y2 = 1/2 cos(wt + pi/2) and y3 = 3 cos(wt + pi), acting in the same straight line.

Solution:
Find the resultant of the vibrations y1  = cos wt , y2  = 1/2 cos(wt + pi/2) and

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