Find the exact value of cos 135º.
?
A. ?
B. 
C. 
D. 
E. 
Answer: A
Mathematics
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Complete the table of values, and then plot the ordered pairs.x + 4 = 0
?
A.
 ? |  |
B.
 ? |  |
C.
 ? |  |
D.
 ? |  |
Mathematics
Find the least common denominator of the rational expressions.
and 
A. (x + 9)( x - 9) B. (x + 9)(x - 9)2 C. (x2 + 9)( x2 - 9) D. x( x - 9)
Mathematics
Find the composition. If f(x) = -2x + 4 and g(x) = 
, find g
.
A. - 
B. 14
C. 
D. 
Mathematics
Solve the equation in the complex number system.x3 - 729 = 0
A. {9, - 
- 
, - 
+ 
}
B. {9, - 
- 
i, - 
+ 
i}
C. {9}
D. {9, -9i, 9i}
Mathematics