Factor. Assume that all exponents are positive.x4n - 1
A. (x3n + 1)(xn - 1)
B. (xn + 1)3(xn - 1)
C. (xn + 1)2(xn - 1)2
D. (x2n + 1)(xn + 1)(xn - 1)
Answer: D
Mathematics
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f(x), where f(x) = 
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Write the complex number in polar form. Express the argument ? in degrees, with 0 ? ? ? 360°.4
- 4i
A. 8(cos(330°) + i sin(330°)) B. 8(cos 30° + i sin 30°) C. 8(cos(-60°) + i sin(-60°)) D. 8(cos 150° + i sin 150°)
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A. Not a function B. Function
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Find the slope of the line containing the two points.(5, -4); (-4, 4)
A. - 
B. 
C. 
D. - 
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