Question

value of the determinant
2i 3

7 -i​

Answer 1

Answer:

Given,

∣

∣

∣

∣

∣

∣

2i

i

3

−3i

−2i

3

∣

∣

∣

∣

∣

∣

, where i=

−1

.

Expanding the determinant we get

=2i×(−2i

3

)−(−3i)×i

3

=−4i

4

+3i

4

=−i

4

=−1