Find all real numbers in the interval [0, 2?) that satisfy the equation.cos x cos(?/8) - sin x sin(?/8) = 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Classify as equivalent inequalities, equivalent equations, equivalent expressions, or not equivalent.- 
x < 8, x > 40
A. Not equivalent B. Equivalent equations C. Equivalent inequalities D. Equivalent expressions
Mathematics
Simplify.Evaluate. 5-4
A. -625
B. 
C. 625
D. 
Mathematics
Simplify by first converting to rational exponents. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Mathematics
Rewrite the expression without absolute value bars.
A. - 1
B. 
C. 0
D. 1
Mathematics