Is the matrix regular?
no
Mathematics
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Find the limit of the sequence if it converges; otherwise indicate divergence.an = (-1)n 
A. 0 B. ±6 C. 6 D. Diverges
Mathematics
Subtract.
- 
A. - 
B. 
C. 
D. - 
Mathematics
Is the number 1,997 prime? ?
A. Prime B. Not prime
Mathematics
Find the radian measure of the angle ?.The length of the circular arc associated with ? is 600 on the unit circle.
A. 60
B. 6
C. 
D. 600
Mathematics