Find the identical expression for the following.
?
?
A. 
B. ?
C. 
D. ?
E. 1
Answer: C
Mathematics
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Find the center of mass of a thin plate of constant density covering the given region.The region in the first and fourth quadrants enclosed by the curves 
and 
and by the lines 
and 
A. 
= 
, 
= 0
B. 
= 
, 
= 0
C. 
= 0, 
= 
D. 
= 
, 
= 0
Mathematics
Add.
+ 
A. 0
B. - 
C. 
D. 
Mathematics
Name the quadrant in which the angle ? lies.csc ? > 0, sec ? > 0
A. I B. II C. III D. IV
Mathematics
Ohm's Law for the current I in a circuit with voltage E, resistance R, capacitance reactance XC, and inductive reactance XLis 
Use this law to solve the problem.Find R if 
and 
A. 
+ 
i
B.
| 1 + i |
C.
1 +  i |
D.
 + i |
Mathematics