Find all cube roots of the complex number. Leave answers in trigonometric form.4 - 4i
A. 
cis 100°, 
cis 220°, 
cis 340°
B. 
cis 60°, 
cis 180°, 
cis 300°
C. 
cis 80°, 
cis 200°, 
cis 320°
D. 
cis 100°, 
cis 220°, 
cis 340°
Answer: D
Mathematics
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Identify the equation as either an identity or not.tan x + cot x = 2 csc 2x
A. Not an identity B. Identity
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Eliminate the parameter to obtain a Cartesian equation of the curve.x = et, y = e-t, -? < t < ?
A. y = ex, -? < x < ? B. y = e-x, -? < x < ? C. y = e-ln x, 0 < x < ? D. y = eln x, 0 < x < ?
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Simplify the complex fraction.
A. 
B. 
C. 
D. 
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Determine which of the given choices is a solution of the equation. 2-5x=8+x
(a) 1 (b) -1 (c) 0 (d) 2 (e) none of these
Mathematics