1.

यदि `A=[(-2),(4),(5)],B=[(1,3,-6)]` सत्यापित कीजिए `(AB)’=B’A’`

Answer» यहां `A=[(-2),(4),(5)]_(3xx1)` और `B=[(1,3-6)]_(1xx3)`
`:.AB=[(-2),(4),(5)][(1,3,-6)]`
`impliesAB=[(-2,-6,12),(4,12,-24),(5,15,-30)]`
`implies(AB)’=[(-2,4,5),(-6,12,15),(12,-24,-30)]`………1
अब `A’=[(-2,4,5)]_(1xx3)` और `B’=[(1),(3),(-6)]_(3xx1)`
`:.B’A’=[(1),(3),(-6)][(-2,4,5)]`
`B’A’=[(-2,4,5),(-6,12,15),(12,-24,-30)]`…….2
समी 1 और 2 से
`(AB)’=B’A’`


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