Provide an appropriate response.Find all complex cube roots of z = 8i. Write each root in rectangular form.
A. 2i, 
- i, - 
- i
B. -2i, - 
- i, 
- i
C. -2i, 
+ i, - 
+ i
D. 2i, 
+ i, - 
+ i
Answer: C
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Calculate the arc length of the indicated portion of the curve r(t).r(t) = (5t sin t + 5 cos t)i + (5 t cos t - 5 sin t)j ; -1 ? t ? 4
A. 75 B. 37.5 C. 42.5 D. 85
Solve the problem.An airplane is flying in the direction 11° east of south at 614 km/hr. Find the component form of the velocity of the airplane, assuming that the positive x-axis represents due east and the positive y-axis represents due north.
A. 
B. 
C. 
D. 
Provide an appropriate response.Subtract: 3,058 - 1,437
A. 4,495 B. 1,621 C. 2,621 D. 1,495 E. none of the above
Write the product as a sum or difference containing only sines or cosines.cos(6?) cos(5?)
A. cos2(30?2)
B. 
[cos(11?) - sin ?]
C. 
[ cos ? + cos(11?)]
D. 
[cos(11?) - cos ?]