Simplify the power of i.i-11
A. -i
B. i
C. -1
D. 1
Answer: B
Mathematics
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A. $120 B. $840 C. $946 D. $900
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Use the elimination method to solve the system.
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Find the difference.- 
- 
A. - 
B. 
C. - 
D. - 
Mathematics