Q1 of 256 Page 7

Evaluate the following determinant:



Applying C1 → C1 + C2 + C3 + C4, we get,




Now, applying R2 → R2 – R1, R3 → R3 – R1, R4 → R4 – R1, we get





Now, applying R1 → R1 + 3R3




= (40)(8)(40)(40) = 512000


So, Δ = 512000


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