Use a sum-to-product identity to rewrite the expression.sin 
- sin 
A. 2 cos 
cos 
B. 2 cos 
sin 
C. 2 sin 
sin 
D. 2 cos 
sin 
Answer: B
Mathematics
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Given p is true, q is true, and r is false, find the truth value of the statement.~q ? r
A. False B. True
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Find the focus and directrix of the parabola.x2 = -12y
A. (0, -3); x = 3 B. (-3, 0); y = 3 C. (0, -3); y = 3 D. (0, -3); y = -3
Mathematics
Solve the given equation graphically.11 - 3x = -10
A. 9 B. 7 C. 1 D. 3
Mathematics
Find the determinant.det 
A. -45 B. -23 C. 3 D. -420
Mathematics