Rationalize the denominator of the following expression and then simplify your answer.
?
?
A. 3
B. 
C. 
D. 
E. 
Answer: E
Mathematics
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Evaluate the integral.
A. 
sec-1 
+ C
B. 
sec-1 
+ C
C. 
sec-1 
+ C
D. 
sin-1 
x + C
Mathematics
Evaluate the definite integral.
A. 
B. 
C. - 
D. 
Mathematics
Use the data set {d1, d2, d3, ..., d251} consisting of 251 numbers to answer the following question(s).After sorting the data set (in increasing order from left to right) the first quartile is
A. the average of the numbers in the 62nd and 63rd positions. B. the number in the 63rd position. C. the number in the 64th position. D. the average of the numbers in the 63rd and 64th positions. E. none of these
Mathematics
The given point lies on the graph of the unit circle and corresponds to a real number t. Find the value of the indicated trigonometric function of t.
Find cos t.
A. 
B. - 
C. - 
D. 
Mathematics