Answer the question.If n is an odd number, then which of the following statements is true?
A. The equation xn - 1 = 0 has an odd number of nonreal roots.
B. The equation xn - 1 = 0 has n - 1 roots.
C. The equation xn - 1 = 0 has exactly one real root.
D. The equation xn - 1 = 0 has an even number of real roots.
Answer: C
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Find the extreme values of the function and where they occur.f(x) = 
A. Absolute maximum value is 1 at x = 0. B. Absolute minimum value is -1 at x = 0.5. C. Absolute maximum value is 1 at x = 0.5, absolute minimum value is -1 at x = 0.5. D. Absolute maximum value is 1 at x = 0.5.
Solve the inequality by the test-point method. Write the solution in interval notation.x3 - 8x2 > 0
A. (0, 8) B. (-?, 8) C. (8, ?) D. (-?, 0) ? (8, ?)
Find the angle between v and w. Round to one decimal place, if necessary.v = 2i + 3j + k and w = 2i + 5j + 3k
A. 17.5° B. 76.5° C. 30.1° D. 72.5°
Solve the equation.
+ 
= 
A. 3, 5 B. 4, 4 C. 5, 3 D. -4, -4