Find the angle between u and v in radians.u = -8j and v = 9i - 10k
A. 0.07
B. 1.57
C. 0.00
D. 1.65
Answer: C
Mathematics
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Find the area of the shaded region.
A. 4 + 
B. 8
C. 
D. 4
Mathematics
Perform the indicated operations graphically.(-3 - j) + (-1 - 2j )
A. 
a = -3 - j
b = -1 - 2j
c = (-3 - j) + (-1 - 2j )
B. 
a = -3 - j
b = -1 - 2j
c = (-3 - j) + (-1 - 2j )
C. 
a = -3 - j
b = -1 - 2j
c = (-3 - j) + (-1 - 2j )
D. 
a = -3 - j
b = -1 - 2j
c = (-3 - j) + (-1 - 2j )
Mathematics
Write the appropriate rotation formulas so that in a rotated system the equation has no x'y'-term.4x2 + 5xy + 4y2 - 8x + 8y = 0
A. x = 
x' - 
y'; y = 
x' + 
y'
B. x = 
x' - 
y'; y = 
x' + 
y'
C. x = 
(x' - y'); y = 
(x' + y')
D. x = -y'; y = x'
Mathematics
Solve the equation.
= 4
A. {15} B. {17} C. {25} D. {16}
Mathematics