Establish the identity.cos
= -sin ?
What will be an ideal response?
cos 
= cos 
cos ? + sin 
sin ? = 0 ? cos ? - 1 ? sin ? = - sin ?
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Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves about the given lines.y = 4x,
y = 0,
x = 4; revolve about the x-axis
A. 
B. 
?
C. 
?
D. 
?
Graph the function.y = 
- 3
A. 
B. 
C. 
D. 
Determine whether the sequence converges or diverges. If it converges, find the limit.
 Figure 3.png)
Find (a) the gross profit, (b) the net income before taxes, and (c) the net income after taxes.Jill's Cleaning Service had net sales of 
operating expenses of 
taxes of 
and a cost of goods sold of 
A. (a) $58,000 (b) $126,000 (c)$111,400 B. (a) $180,000 (b) $126,000 (c)$111,400 C. (a) $238,000 (b) $126,000 (c)$111,400 D. (a) $58,000 (b) $238,000 (c)$223,400