Solve the equation on the interval 0 ? ? < 2?.sin ? = -
- cos ?
A. {
}
B. {
}
C. {
}
D. {
}
Answer: C
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Evaluate the integral.
A. 
B. 
C. 
D. 
Solve the problem.Sales of snow shovels are seasonal. Suppose the sale of snow shovels in Maine is approximated by 
where t is time in months and t = 0 is October. What are the sales in December?
A. 15,000 B. 13,900 C. 18,660 D. 17,071
Given the polynomial function f(x), find the rational zeros, then the other zeros (that is, solve the equation 
), and factor f(x) into linear factors.f(x) = x3 - 9x2 + 13x + 7
A. 7, 1 + 
, 1 - 
; f(x) = (x - 7)(x + 1 - 
)(x + 1 + 
)
B. 7, -1 + 
, -1 - 
; f(x) = (x - 7)(x + 1 - 
)(x + 1 + 
)
C. 7, 1 + 
, 1 - 
; f(x) = (x - 7)(x - 1 - 
)(x - 1 + 
)
D. -7, 1 + 
, 1 - 
; f(x) = (x + 7)(x - 1 - 
)(x - 1 + 
)
Divide and express the result in standard form.
A. 
- 
i
B. - 
- 
i
C. - 
+ 
i
D. 
+ 
i