Establish the identity.
2 = 1 - sin x
What will be an ideal response?
2 = 
2 = 
- 2
+ 
= 1 - 2
= 1 - 2
= 1 - sin x
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Graph the function, showing all asymptotes (those that do not correspond to an axis) as dashed lines. List the x- and y-intercepts.f(x) = 
A. x-intercept: (1, 0) , y-intercept: 
;
B. x-intercept: (-1, 0) , y-intercept: 
;
C. x-intercept: (1, 0) , y-intercept: 
;
D. x-intercept: (-1, 0) , y-intercept: 
;
Solve the problem.A conservation officer needs to know the width of a river in order to set instruments correctly for a study of pollutants in the river. From point A, the conservation officer walks 105 feet downstream and sights point B on the opposite bank to determine that ? = 50° (see figure). How wide is the river (round to the nearest foot)? 
A. 163 ft B. 125 ft C. 80 ft D. 88 ft
Choose the graph of the given parametric equations.x = 3 sin 3t, y = 2 cos t
A. 
B. 
C. 
D. 
Express in terms of i.
A. -i
B. -2i
C. 2i
D. ±2