Simplify the square root.
A. -3x - 7
B. (3x + 7)2
C. 3x + 7
D. |3x + 7|
Answer: D
Mathematics
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Find the Cartesian product or cardinal number as requested.A = {i, a}B = {t, d, m}Find A × B.
A. {(i, t), (a, t), (i, d), (a, d)} B. {(i, t), (i, d), (i, m), (a, t), (a, d), (a, m)} C. {(t, i), (t, a), (d, i), (d, a), (m, i), (m, a)} D. {(i, t), (t, a), (i, d), (d, a), (i, m), (m, a)}
Mathematics
Express the product as a sum containing only sines or cosines.sin(2?) sin(4?)
A. 
[- cos(2?) - cos(6?)]
B. 
[cos(6?) - sin(2?)]
C. 
[cos(2?) - cos(6?)]
D. sin2(8?2)
Mathematics
Simplify the complex rational expression.
A. 
B. 
C. 
D. 
Mathematics
Divide, if possible. Assume any variable in the denominator is nonzero.
A. 16 B. 0 C. Undefined D. 1
Mathematics