Use De Moivre's Theorem to find the indicated power of the complex number. Write your answer in standard form a + bi.(5(cos 90° + i sin 90°))3
A. -125 i
B. -125
C. -15 i
D. 0
Answer: B
Mathematics
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Find all solutions of the equation in the interval [0, 2?).tan2 x = 3
A. 
B. 
C. 
D. 
Mathematics
Find the volume of the sphere satisfying the given condition. Approximate values to the nearest tenth.radius = 2.5 cm
A. 36.8 cm3 B. 523.3 cm3 C. 26.2 cm3 D. 65.4 cm3
Mathematics
Use a graph or a table to find the limit.
2-x
A. - 
B. ?
C. -?
D. 0
Mathematics
Graph the ellipse. Label the intercepts.
+ 
= 1
A. (-3, 0), (3, 0), (0, -3), (0, 3)
B. (-12, 0), (12, 0), (0, -3), (0, 3)
C. (-12, 0), (12, 0), (0, -12), (0, 12)
D. (-3, 0), (3, 0), (0, -12), (0, 12)
Mathematics