Use a half-number identity to find an exact value for the function, given the information about x.cos 
, given cos x = - 
, with 
< x < ?
A. 
B. 
C. - 
D. - 
Answer: B
Mathematics
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Use the substitution formula to evaluate the integral.
A. 
B. - 
C. - 
D. - 
Mathematics
Solve the problem.If u = 
, v = 
, and w = 
, evaluate (u + v) ? w.
A. -19 B. -8 C. -15 D. -10
Mathematics
Answer the question.How many automobile license plates can be made involving 2 letters followed by 4 digits?
A. 6,780,500 B. 6,760,000 C. 10,676 D. 6,749,744
Mathematics
Combine like terms.9.2a + 7.7b - 1.1a - 1.6b
A. -8.1a + 6.1b B. 10.3a + 9.3b C. 8.1a + 6.1b D. 8.1a + 9.3b
Mathematics