Match the graph to one of the polar equations.
A. r = -1
B. r = -2 sin ?
C. r = -2 cos ?
D. r sin ? = -1
Answer: D
Mathematics
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Use the Gauss-Jordan method to find A-1, if it exists.A = 
A. 
B. 
C. 
D. Does not exist
Mathematics
Factor.144 - z2
A. (12 - z)(12 + z) B. (z - 12)(z + 12) C. (12 + z)2 D. (12 - z)2
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Find the inverse of A if it has one, or state that the inverse does not exist.A = 
A. Inverse does not exist
B. 
C. 
D. 
Mathematics
Determine whether the matrices are inverses. 
, 
A. Yes B. No
Mathematics