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(m^2+2)cos^2x 2msin 2x+1u003d0
(m^2+2)cos^2x 2msin 2x+1u003d0 pictures 5
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(m^2+2)cos^2x 2msin 2x+1u003d0
(m^2+2)cos^2x 2msin 2x+1u003d0
