Find the exact value of the expression.cos2
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find the values of a1, a2, a3, and a4.an = 
A. 0, 
, 
, 
B. ln 2, 
, 
, 
C. 0, 
, 
, 
D. 
, 
, 
, 
Mathematics
Determine whether the system of equations is consistent or inconsistent. If the system is consistent, determine whether the equations are dependent or independent.
A. Independent B. Dependent C. Inconsistent
Mathematics
Solve the equation.log5 x2 = 4
A. {25, -25}
B. {32}
C. {2
, -2
}
D. {625}
Mathematics
Find any excluded values. 
A. no excluded values B. 0 C. 4 D. 0, 4
Mathematics