Write the conjugate  of the complex number z. Then find z.z = -6 - i

A.  = -6 + i, z = 36
B.  = -6 + i, z = -35
C.  = -6 + i, z = -6
D.  = -6 + i, z = 37


Answer: D

Mathematics

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Find the indicated series by the given operation.Show that by integrating term by term the expansion of - , the result is the expansion for 

A. = x2 + x4 + x6 + x8 + . . .
B. = -x2 + x4 - x6 + x8 - . . .
C. = x2 - x4 + x6 - x8 + . . .
D. = -x2 - x4 - x6 - x8 - . . .

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Find the area of the surface generated when the given curve is revolved about the y-axis.y = , for 4 ? x ? 6

A. (103/2 - 53/2)
B. (73/2 - 63/2)
C. 4?(103/2 - 53/2)
D. (103/2 - 53/2)

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The rectangular coordinates of a point are given. Find polar coordinates for the point.(-5, 5)

A.
B.
C.
D.

Mathematics

Find the absolute value of the complex number.z = -17

A. 17 B. 0 C. 34 D. -17

Mathematics