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(1+m2)x2+2mcx(c^2 a^2)u003d0
(1+m2)x2+2mcx(c^2 a^2)u003d0 pictures 5
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(1+m2)x2+2mcx(c^2 a^2)u003d0
(1+m2)x2+2mcx(c^2 a^2)u003d0
