Solve the problem.The first period of a half-wave rectified current, I(t), is given by
Find ao and as many nonzero cosine and sine terms as possible, up to two of each, of the Fourier series for this waveform.
A. I(t) = 
- 
- 
sin t
B. I(t) = 
- 
- 
C. I(t) = 
- 
- 
D. I(t) = 
- 
- 
Answer: A
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Solve the problem.The maximum monthly average temperature in Smithville is 87° in July, and the minimum is 35° in January. Determine 
so that f
models the monthly average temperature in Smithville, where x is the month and 
corresponds to January.
A. f
= 26 cos 
+ 61
B. f
= 61 cos 
+ 26
C. f
= 26 cos 
+ 61
D. f
= 26 cos 
+ 61
Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Use either the binomial theorem or Pascal's Triangle to expand the binomial.(a - b)6
A. -a6 + 6a5b - 15a4b2 + 20a3b3 - 15a2b4 + 6ab5 - b6 B. a6 - 6a5b + 15a4b2 - 20a3b3 + 15a2b4 - 6ab5 + b6 C. a6 + 6a5b + 15a4b2 + 20a3b3 + 15a2b4 + 6ab5 + b6 D. a6 - 6a5b - 15a4b2 - 20a3b3 - 15a2b4 - 6ab5 - b6
The graph of a logarithmic function is shown. Select the function which matches the graph.
A. y = log2x B. y = -log2x C. y = log2(-x) D. y = 1 - log2x