Solve the equation in the complex number system.x7 - 1 = 0
A. 1, cos(25.7°) + i sin(25.7°), cos(51.4°) + i sin(51.4°), cos(77.1°) + i sin(77.1°), cos(102.9°) + i sin(102.9°), cos(128.6°) + i sin(128.6°), cos(154.3°) + i sin(154.3°)
B. 1, cos(51.4°) + i sin(51.4°), cos(102.9°) + i sin(102.9°), cos(154.3°) + i sin(154.3°), cos(205.7°) + i sin(205.7°), cos(257.1°) + i sin(257.1°), cos(308.6°) + i sin(308.6°)
C. -1, cos(25.7°) + i sin(25.7°), cos(51.4°) + i sin(51.4°), cos(77.1°) + i sin(77.1°), cos(102.9°) + i sin(102.9°), cos(128.6°) + i sin(128.6°), cos(154.3°) + i sin(154.3°)
D. 1, cos(51.4°) + i sin(51.4°), cos(102.9°) + i sin(102.9°), cos(154.3°) + i sin(154.3°), cos(205.7°) + i sin(205.7°), cos(257.1°) + i sin(257.1°), cos(308.6°) + i sin(308.6°), -1
Answer: B
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Provide an appropriate response.The definite integral represents area only if the function involved is ? at every x-value in the interval 
A. rational B. positive C. nonnegative D. negative
Find the derivative of y with respect to x, t, or ?, as appropriate.y = x7ln x - 
x3
A. x7ln x - x2 + 7x6 B. 8x6 - x2 C. 7x6 - x2 D. x6 - x2 + 7x6ln x
Determine whether the problem is an equation or an expression. x + 8 = 17
A. Expression B. Equation
Add or subtract as indicated. You will need to simplify terms to identify like radicals.
- 
A. (5x - 3)
B. (5x - 2)
C. x
D. (x - 2)