1.

The value of Δ=∣∣∣∣2a1b1a1b2+a2b1a1b3+a3b1a1b2+a2b12a2b2a3b2+a2b3a1b3+a3b1a3b2+a2b32a3b3∣∣∣∣ is:

Answer»

The value of Δ=
2a1b1a1b2+a2b1a1b3+a3b1a1b2+a2b12a2b2a3b2+a2b3a1b3+a3b1a3b2+a2b32a3b3
is:



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