MATRICES
if A= (2i 3i)
(2i -i)
(i^2=-1) then |A|=?
Answers
Answered by
2
Answer:
If
,
, then
(a) is a skew-symmetric matrix (b)
(c) does not exist (d) none of these
Answered by
3
Answer:
|A|= 8
Step-by-step explanation:
|A| = (2i×-i)-(3i×2i)
= (2× -(i^2))- (3×2×i^2)
= i^2 is -1 (given)
= (2×--1)-(6×-1)
= 2+6 = 8
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