Give the exact value of the expression.arccos
A. ?
B. 
C. 0
D. 
Answer: D
Mathematics
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LetU = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z} C = {v, w, x, y, z}. List the elements in the set.(A ? B)'
A. {r, t, u, v, w, x, z} B. {s, u, w} C. {q, s, t, u, v, w, x, y} D. {t, v, x}
Mathematics
Find all complex zeros of the polynomial function. Give exact values. List multiple zeros as necessary.f(x) = x3 - 3x2 - 5x + 39
A. -3, 3 + 2i, 3 - 2i
B. -3, 1 + 2i, 1 - 2i
C. -3, 3 + 4i, 3 - 4i
D. -3, 1 + 2
i, 1 - 2
i
Mathematics
Write the expression in the standard form a + bi.i19
A. -i B. i C. -1 D. 1
Mathematics
Solve the quadratic equation. Write the answer in simplest form.(p + 5)2 = 11
A. {-
, 
}
B. {-5 - 
, -5 + 
}
C. {5 - 
, 5 + 
}
D. {6}
Mathematics