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If A is a 3×3 matrix with det(A) = 2, then det(2A):

A4
B8
C16
D32
Answer & Solution
Correct answer: C. 16
For n × n matrix: det(kA) = kⁿ × det(A). Here n = 3, k = 2: det(2A) = 2³ × 2 = 16.
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