question is written in this pic with my solution.. however my ans doesnt match with the correct answer.. where am I gonig wrong??

Question

Aditya Gupta · Answer

Dear muskan, your very first step itself is wrong. Note that the only Valid row/column operations which leave the value of a determinant unchanged are of the form: Ri --- Ri + mRj + nRk where m and n are constants. Or Ci --- Ci + mCj + nCk Since you have written R2 --- 2R2 - R1- R3, it is wrong because of the '2' in front of the row on which row operation is being applied, namely R2.

Vikas TU · Answer

Dear student Please ask single question in a thread , It will be easier for us to ans. Good Luck Cheers

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question is written in this pic with my solution.. however my ans doesnt match with the correct answer.. where am I gonig wrong??

question is written in this pic with my solution.. however my ans doesnt match with the correct answer.. where am I gonig wrong??

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