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Solve the following : [[x,1,3],[1,x,1],[3,6,3]]=0 |
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Answer» Solution :`[[x,1,3],[1,x,1],[3,6,3]]`=0 or, `x[[x,1],[6,3]]-1[[1,1],[3,3]]+3[[1,x],[3,6]]`=0 or, x(3x-6)-0+3(6-3x)=0 `3x^2-6x+18-9x=0` or, `3x^2-15x+18=0` `x^2-5x+6=0` or, (x-3)(x-2)=0 `therefore` x=3 0r, x=2 |
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