Use a half-angle formula to find the exact value of the expression.cos 
A. -
B.
C.
D. -
Answer: C
Mathematics
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Evaluate the determinant.
A. -1 B. -7 C. 5 D. -5
Mathematics
Evaluate the integral.
A. 136 B. 30 C. 1 D. 24
Mathematics
Find the interest and maturity value for the loan. Round to the nearest cent.$46,228 at 7.4% for 23 months
A. $6,841.74; $53,069.74 B. $6,271.60; $52,499.60 C. $6,611.77; $52,839.77 D. $6,556.67; $52,784.67
Mathematics
Find the slope of the line.
A. -2
B.
C. 2
D. -
Mathematics