1.

If Δ1 = ∣∣∣10ab∣∣∣ and Δ2 = ∣∣∣10cd∣∣∣, then Δ2Δ1 is equal to

Answer»

If Δ1 = 10ab and Δ2 = 10cd, then Δ2Δ1 is equal to



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