Find all complex roots. Write the answer in polar form, with 0 ? ? ? 360°.Fifth roots of 1
A. cos 0° + i sin 0°, cos 72° + i sin 72°, cos 144° + i sin 144°, cos 216° + i sin 216°, cos 288° + i sin 288°
B. cos 0° + i sin 0°, cos 36° + i sin 36°, cos 108° + i sin 108°, cos 252° + i sin 252°, cos 324° + i sin 324°
C. cos 180° + i sin 180°, cos 72° + i sin 72°, cos 144° + i sin 144°, cos 216° + i sin 216°, cos 288° + i sin 288°
D. cos 180° + i sin 180°, cos 36° + i sin 36°, cos 108° + i sin 108°, cos 252° + i sin 252°, cos 324° + i sin 324°
Answer: A
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Find the equation of the parabola whose vertex and focus are shown.
A. y2 = -24x B. y2 = 24x C. x2 = -24y D. y2 = -6x
Solve the equation by completing the square.x2 + 5x - 5 = 0
A.
B. -5 + 3 , -5 - 3
C. ,
D. No real solution
Solve the system by the method of your choice. Identify systems with no solution and systems with infinitely many solutions, using set notation to express their solution sets.x + y = 7x + y = 3
A. {(7, 3)}
B. {(0, 10)}
C. { x + y = 7}
D. ?
Find the sum.
A. 363 B. 364 C. 202 D. 355