Find 
.tan y = ex + ln 4x
A. 
B. 
C. 
D. ex + 
- sec2 y
Answer: A
Mathematics
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Perform the operation indicated.
? 
A. 
B. 
C. 
D. 
Mathematics
Find an equation for the ellipse described.Center at (0, 0); focus at (0, -2); vertex at (0, 6)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Algebraically evaluate the limit (if it exists) by the appropriate technique(s).
?
?
A. 
B. 
C. 
D. 
?
E.
?
Mathematics
A petrol car is parked 
feet from a long warehouse (see the figure below). The revolving light on top of the car turns at a rate of 30 revolutions per minute. Write ? as a function of x.
?
A. 
B. 
C. 
D. 
E. 
Mathematics