Find the sum of the geometric series for those x for which the series converges.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Simplify the expression.
A. 
B. 
C. - 
D. 
Mathematics
Solve the problem.Express 45° as ? - ?, where cos ? and cos ? are known exactly.
A. 165° - 120° B. 80° - 35° C. 163° - 118° D. 167° - 122°
Mathematics
Use U = universal set = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}, A = {1, 2, 3, 5, 8}, B = {2, 3, 5, 7}, and C = {1, 4, 9} to find the set.A ? B
A. {2, 3, 5} B. {1, 2, 3, 5, 8} C. {1, 2, 3, 5, 7, 8} D. {2, 3, 5, 7}
Mathematics
Solve the equation.x2 - 80x - 81 = 0
A. -1, 81 B. -9, -9 C. -9, 9 D. 1, -81
Mathematics