Use the Half-angle Formulas to find the exact value of the trigonometric function. sin 165°
A. 
B. - 
C. 
D. - 
Answer: C
Mathematics
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True or False?
 FIGURE 1.png)
Mathematics
Graph the piecewise function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics
Use a graphing utility to graph the equation. Use a standard setting. Approximate any intercepts.
?
?
A. ?
Intercepts: (0, 0), (-2, 0)
B. ?
Intercepts: (0, 0)
C.
Intercepts: (0, 0), (2, 0)?
D. ?
Intercepts: (2, 0), (0, 0)
E. ?
Intercepts: (-2, 0), (0, 0)
?
Mathematics
Find the focus and directrix of the parabola.x = 10y2
A. F: 
; D: x = 
B. F: 
; D: x = - 
C. F: 
; D: x = - 
D. F: 
; D: y = - 
Mathematics