Use a half-angle formula to find the exact value of the expression.sin 105°
A. 
B. - 
C. - 
D. 
Answer: A
Mathematics
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Find the series' radius of convergence.
A. 2 B. 0 C. ?, for all x D. 1
Mathematics
Use your knowledge of multiplying signed numbers along with the techniques of multiplying decimals to find the product.- 12.7 × (-0.01)
A. 0.127 B. 0.0127 C. -0.127 D. -0.0127
Mathematics
Solve the problem.Find the area A of a rectangle with length 11 ft and width 13 ft.
A. A = 24 ft2 B. A = 44 ft2 C. A = 143 ft2 D. A = 286 ft2
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. {1} B. {0, 2, 3, 4, 5, 6, 7, 8, 9} C. {1, 2, 3, 4, 5, 6, 7, 8, 9} D. {1, 2, 3, 4, 5, 7, 8, 9}
Mathematics