Change the number to polar form and then perform the indicated operations. Express the result in rectangular form.(6 - 6j)(4 + 8j)
A. 72 - 24j
B. -24 - 72j
C. 72 + 24j
D. -48j2 + 24j + 24
Answer: C
Mathematics
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A. (10, 8) B. (0, 10) C. (8, 10) D. (8, 0)
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Add the given pair of complex numbers geometrically.z1 = -4 - 9i, z2 = 9 + 7i
A. 0 + 2i B. 0 - 2 C. 5 + 2i D. 5 - 2i
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Find an equation for the ellipse described.Vertices at (-7, 5) and (-1, 5); focus at (-6, 5)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
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Decide whether the polynomial is written in descending powers, ascending powers or neither.5 - x + 7x3
A. Ascending B. Descending C. Neither
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