Determine two pairs of polar coordinates for the point with 0° ? ? < 360°.(0, - 
)
A. (
, 270°), (- 
, 90°)
B. (
, 90°), (- 
, 0°)
C. (
, 90°), (- 
, 270°)
D. (
, 0°), (- 
, 180°)
Answer: A
Mathematics
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Find the gradient field F of the function f.f(x, y, z) = 
A. F = - 
i - 
j - 
k
B. F = - 
i - 
j - 
k
C. F = 
i + 
j + 
k
D. F = 
i + 
j + 
k
Mathematics
Solve the given trigonometric equation analytically (using identities when necessary for exact values when possible) for values of x for 0 ? x < 2?.sin
= cos
A. 
, 
B. 0, ?
C. ?
D. 0, 
, ?, 
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Graph.f(x) = |x| + 2
A. 
B. 
C. 
D. 
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Find the conjugate of the complex number. Then multiply the complex number by its conjugate.2 + 5i
A. 2 - 5i; 29 B. -3; 29 C. 7; 29 D. 2 + 5i; 29
Mathematics