Perform the row operation(s) on the given augmented matrix.(a) R2 = -2r1 + r2(b) R3 = -2r1 + r3(c) R3 = 6r2 + r3
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Fill in the blank with one of the words or phrases listed below.
= 
is an example of a(n) 
.
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A. ±
, ±
B. ±
, ±
C. ±
D. 
, 
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