Solve the system of equations by Gauss-Jordan elimination.
A. {(5, -2, 5)}
B. {(-2, 5, 5)}
C. {(5, 5, -2)}
D. ?
Answer: C
Mathematics
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Find the length of the curve.The curve r = 9 sin3 
, 0 ? ? ? 
A. 27(3
- ?)
B. 
(5? - 9
)
C. 
(2? - 3
)
D. 
(5? - 8)
Mathematics
Find the integral.
dx
A. 
+ C
B. (cos-1 x)5 + C
C. 4(sin-1 x)3 + C
D. 
+ C
Mathematics
Perform the indicated operation(s). Where possible, reduce the answer to lowest terms.
÷ 
A. 
B. 
C. 
D. 
Mathematics
Find the limit of the sequence or determine that the limit does not exist.an = 
n
A. e B. e4 C. does not exist D. 1
Mathematics