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[" 4A is a non' zevo colonm "],[" matris...

[" 4A is a non' zevo colonm "],[" matris of order "m times1" and "B],[" is a nen.Zeve row math of "],[" order "1times n" tam Yhat of "AB" ellow "],[[" a) "mbn," () "D," (i) "]]

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