Find the value of the expression 
.
?
A. 
B. 
C. 
D. 
E. 
Answer: A
Mathematics
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Solve the problem.Find an equation for the level curve of the function f(x, y) = 
dt that passes through the point 
.
A. y2 - x2 = 24 B. y2 - x2 = 26 C. y2 - x2 = -24 D. y2 + x2 = 26
Mathematics
Solve the problem.Find the half-life of the radioactive element radium, assuming that its decay constant is 
with time measured in years.
A. 1400 years B. 1600 years C. 800 years D. 2308 years
Mathematics
Solve the equation on the interval [0, 2?).2 cos2 x + sin x - 2 = 0
A. 
, 
, 
, 
B. 
, 
C. 0, ?, 
, 
D. 
, 
Mathematics
Solve the equation.
a = 0
A. {-16} B. {1} C. {0} D. {16}
Mathematics