Solve the problem.The combined capacitance N (in ?F) of a 3-?F capacitance and a variable capacitance C in series is given by 
Sketch the graph.
A. 
B. 
C. 
D. 
Answer: A
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Use the graph of the function f(x) to locate the local extrema and identify the intervals where the function is concave up and concave down.
A. Local minimum at x = 1; local maximum at x = -1; concave down on (0, ?); concave up on (-?, 0) B. Local minimum at x = 1; local maximum at x = -1; concave up on (-?, ?) C. Local minimum at x = 1; local maximum at x = -1; concave down on (-?, ?) D. Local minimum at x = 1; local maximum at x = -1; concave up on (0, ?); concave down on (-?, 0)
Use the root test to determine if the series converges or diverges.
A. Diverges B. Converges
Complete the identity.
= ?
A. sec x - tan x + 1 B. sec x - tan x C. sec x + tan x D. -sec x - tan x
Determine where the function is increasing and where it is decreasing.f(x) = x2 - 10x + 25
A. increasing on (-5, ?) decreasing on (-?, -5) B. increasing on (5, ?) decreasing on (-?, 5) C. increasing on (-?, 5) decreasing on (5, ?) D. increasing on (-?, -5) decreasing on (-5, ?)