Find the indicated term of the geometric sequence.a1 = 7, r = 
; Find a5.
A. a5 = 
B. a5 = 
C. a5 = 
D. a5 = 
Answer: D
Mathematics
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Find the series' radius of convergence.
A. 18 B. ?, for all x C. 9 D. 0
Mathematics
Solve the following system by any appropriate method. If there is no real number solution, so state.x + y = 10x2 + y2 = 6
A. (6, 
), (6, -
), (-6, 
), (-6, -
)
B. (10, 6), (10, -6), (-10, 6), (-10, -6)
C. (10, 
), (10, -
), (-10, 
), (-10, -
)
D. no real solution
Mathematics
Solve the equation by completing the square.x2 + 5x - 5 = 0
A. 
B. {-5 - 3
, -5 + 3
}
C. 
D. 
Mathematics
Find the derivative of the function 
and simplify your answer by using the trigonometric identities.
?
A. 
B. 
C. 
D. 
E. 
Mathematics