Find the product AB.A = 
, B = 
A. 
B. 
C. 
D. 
Answer: C
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Simplify the given expression by giving the results in terms of one-half the given angle. Then use a calculator to verify the result.
A. 0.309 B. 0.437 C. 1.9021 D. 0.618
Evaluate the following:
1. ? dx
2. 
3. 
Solve the problem using matrices.The table below shows the number of birds for three selected years after an endangered species protection program was started.
Use the quadratic function y = ax2 + bx + c to model the data. Solve the system of linear equations involving a, b, and c using matrices. Find the equation that models the data.
A. y = 7x2 - 9x + 28 B. y = 10x2 - 27x + 21 C. y = 5x2 + 9x + 25 D. y = 6x2 + 18x + 20
Find all values of ? in [0, 360°) for which the following is true.csc ? = -2
A. 150° and 330° B. 210° and 330° C. 60° and 240° D. 240° and 300°