allerySubtracting A from B gives [[1,2],[3,4]]. Compute A minus B.
A[[0,0],[0,0]]
B[[-1,-2],[-3,-4]]
C[[1,2],[3,4]]
D[[2,4],[6,8]]
Answer & Solution
Correct answer: B. [[-1,-2],[-3,-4]]
Reversing the subtraction order changes the sign of every resulting entry.
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