Let (m × n) denote a matrix of size m × n. Find the size of the following product, or state that the product is not defined.(3 × 3)(3 × 3)
A. 3 × 6
B. 6 × 3
C. 3 × 3
D. not defined
Answer: C
Mathematics
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A. -7 B. 30 C. 7 D. -30
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, b = 
. Find 6a - 7b.
A. 
B. 
C. 
D. 
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A. 
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