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- az_lenderLv 72 months ago
Of course it's a wave, looks like any other sine or cosine wave. In particular, though, its highest and lowest points will be along the lines y = 2 and y = -2. The high points will occur at x = pi/4, x = 11pi/12, x = 19pi/12, x = 9pi/4, and so on (at horizontal intervals of 8pi/12).

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