Determinants Matrices Question 173
If x = 3, then z is 9
Options:
A) purely real
B) purely imaginary
C) $ a+ib, $ where $ a\ne 0, $
$ b\ne 0, $
D) $ a+ib, $ where b = 4
Show Answer
Answer:
Correct Answer: B
Solution:
- [b] (Taking transpose) Hence, z is purely real.
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