Write the quotient in the form a + bi.
A. -
i
B. +
i
C. 1 + 1i
D. + 1i
Answer: A
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Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos(2?) = , 0 < ? <
Find cos ?.
A.
B.
C.
D.
Find the distance in the xy-plane between the two points. Round an approximate result to the nearest hundredth.(-1, 1) and (3, -5)
A. 6.93 B. 24 C. 26 D. 7.21
Solve the equation algebraically. Verify your solution with a graphing utility.64x2 = 80x - 25
A.
B.
C.
D.
Solve.Find the center, foci, and asymptotes of the hyperbola y2 - x2 - 4y + 6x - 21 = 0
A. C: (3, 2); F: (0, 2 + 4), (0, 2 - 4
); A: y - 2 = x - 3, y - 2 = -(x - 3)
B. C: (3, -2); F: (4, 0), (- 4
, 0); A: y =
x, y = -
x
C. C: (3, 2); F: (3, 2 + 4), (3, 2 - 4
); A: y - 2 = x - 3, y - 2 = -(x - 3)
D. C: (-1, 2); F: (4, 0), (- 4
, 0); A: y = x, y = -x