32. if f4, 9,}, {p, 9, are the lagrange brackets and [9,, q]. [p,. q]. then a) a.9.l9.9,]2 p.q.}{p.9,]-6, (b) lq. 9] - 0 (c) l4, 9,= 0 (d) (p, q]= -l4, pj

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