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how to prove this this is determinant question, I tried using some propertiesbut didnt work

how to prove this
this is determinant question,
I tried using some propertiesbut didnt work
 
 

Question Image
Grade:11

1 Answers

Deepak Kumar Shringi
askIITians Faculty 4405 Points
3 years ago
Apply row1 + row2 then use column2-column3 then expand to get the answer

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