Use the information below to determine the indicated set. U = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z}(A ? B) ? A'
A. {q, y, z}
B. {z}
C. { }
D. {q, r, s, t, v, x, y, z}
Answer: B
Mathematics
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A. -30° B. 240° C. 60° D. 120°
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Express in terms of i.
A. 5
B. -5i
C. -5
D. 5i
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Find the exact value of the expression if ? = 30°. Do not use a calculator.f(?) = cos ?Find [f(?)]2.
A. 
B. 
C. 
D. 
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Use the following matrices and compute AB.
A. 
B. 
C. 
D. 
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