1.

Evaluate the following : [[2,3,4],[1,-1,3],[4,1,10]]

Answer»

SOLUTION :`[[2,3,4],[1,-1,3],[4,1,10]]`=`[[5,3,4],[0,-1,3],[5,1,10]]`
(REPLACING `C_1` by `C_1+C_2`)
`5[[1,3,4],[0,-1,3],[1,1,10]]=[[1,3,4],[0,-1,3],[0,-2,6]]`
(`R_3`~`R_3-R_1`)
= `5xx1[[-1,3],[-2,6]]=5(-6+6)=0`


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