Evaluate the factorial expression.
A. 6!
B. n + 6!
C. (n + 5)!
D. 1
Answer: C
Mathematics
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State whether the vectors are parallel, orthogonal, or neither.v = 4i - 2j,
w = 4i + 2j
A. Orthogonal B. Parallel C. Neither
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Solve the problem.If A is a 3 × 3 matrix and A + B = is the 
zero matrix, what can you say about the matrix?
A. B is the 3 × 3 zero matrix B. B is the 3 × 3 identity matrix C. B = A D. B = -A
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Use the Half-angle Formulas to find the exact value of the trigonometric function. tan 
A. 1 + 
B. -1 - 
C. -1 + 
D. 1 - 
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Write the complex number in polar form. Express the argument ? in degrees, with 0 ? ? ? 360°.-
- i
A. 
(cos 315° + i sin 315°)
B. 
(cos 135° + i sin 135°)
C. 
(cos 45° + i sin 45°)
D. 
(cos 225° + i sin 225°)
Mathematics