Solve the equation.
+ 
= 4
A. {0}
B. {
, -2}
C. {-2}
D. {2, -2}
Answer: C
Mathematics
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Find the exact value of the trigonometric function. Do not use a calculator or tables.tan 
A. 
B. -1
C. 1
D. 
Mathematics
Find the mass of the wire that lies along the curve r and has density ?.r(t) = (3 cos t)i + (3 sin t)j + 3tk, 0 ? t ? 2?; ? = 10
A. 60?
units
B. 20? units
C. 180?
units
D. 6?
units
Mathematics
Evaluate the spherical coordinate integral.
A. 400? B. 240? C. 800? D. 480?
Mathematics
Solve.
= 
+ 
, for T2
A. T2 = 
B. T2 = 
C. T2 = 
D. T2 = 
Mathematics