Simplify, if possible.
A. -10
B. -1
C. 
D. 1
Answer: C
Mathematics
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Find all local extreme values of the given function and identify each as a local maximum, local minimum, or saddle point.
A. 
local maximum; 
local minimum
B. 
local minimum
C. 
local maximum
D. 
saddle point; 
saddle point
Mathematics
Solve the problem.When an alternating current passes through a series RLC circuit, the voltage and current are out of phase by angle ?. Here ? = tan-1[(XL - XC)/R], where XL and XC are the reactances of the inductor and capacitor, respectively, and R is the resistance. Find d?/dXL for constant XC and R.
A. 
B. 
C. 
D. 
Mathematics
Add or subtract.5i + (-3 - i)
A. 3 - 4i B. -3 + 6i C. 3 - 6i D. -3 + 4i
Mathematics
Graph the system of inequalities.3x - 2y ? 6 x - 1 ? 0
A. 
B. 
C. 
D. 
Mathematics