Q. 94.0( 4 Votes )

Evaluate the foll

Answer :


Applying R1R1 – R2 and R3R3 – R2



Applying, C2C2 – C1



= a[a(a + x + y) + az] + 0 + 0


= a2(a + x + y + z)


So, Δ = a2(a + x + y + z)


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