5m Zen
2sin pi 4 x sin pi 4
2sin pi 4 x sin pi 4 pictures 5
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2sin pi 4 x
2sin pi 4 x sin pi 4
2sin 2 x pi 4 )- sin x pi 4 )- 1 0
2sin x pi 4 )+ sin x pi 4 )u003d 3cu0103n2 2
2sin pi 4 x sin pi 4 x )+ sin 2x 0
