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2sin x 2 1 0

2sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 02sin x 2 1 0