Find the limit of the function by using direct substitution.
(6ex cos x)
A. 
B. 1
C. 0
D. 6e?/2
Answer: C
Mathematics
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Find the absolute maxima and minima of the function on the given domain.
on the disk bounded by the circle 
A. Absolute maximum: 72 at 
and 
absolute minimum: 54 at 
and 
B. Absolute maximum: 126 at 
absolute minimum: 0 at 
C. Absolute maximum: 72 at 
and 
absolute minimum: 0 at 
D. Absolute maximum: 54 at 
and 
absolute minimum: 0 at 
Mathematics
Find the domain and graph the function.F(x) = 
A. D: (-?, 0)
B. D: (-?, ?)
C. D: [0, ?)
D. D: (-?, 0]
Mathematics
Solve the given differential equation.3y dy + 
dx - 5x dx = 0
A. sin 
+ 2x = c
B. ln 
+ 2x = c
C. ln 
+ x = c
D. ln 
= c
Mathematics
Divide and simplify. Assume variables do not cause any denominators to equal 0.
÷ 
A. 
B. 
C. 
D. 
Mathematics