Applying Operation C1 C1 + 9C2 (i.e. Replacing 1st column by addition of 1st column and 9 times second column)




C1 C1 - C3 (i.e. Replacing 1st column by subtraction of 1st and 3rd column)



If any one of the rows or columns of a determinant is 0 then the value of that determinant is 0.


LHS = 0 = RHS



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1