Use a half-angle formula to find the exact value of the expression.sin 
A. 
B. - 
C. 
D. - 
Answer: A
Mathematics
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Perform the indicated operation. Simplify if possible.- 
- 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.If (2, 2) is the endpoint of a line segment, and (7, 5) is its midpoint, find the other endpoint.
A. (-8, -4) B. (12, -1) C. (12, 8) D. (8, 12)
Mathematics
Evaluate the expression.6 - 
A. 0 B. 6 C. 12 D. -12
Mathematics
Use the figure provided to find the requested expression.In ?ABC, vectors u and w are determined by the sides shown, where P is the midpoint of side BC. Find an expression for u in terms of v and w.
A. u - 2w B. u + w C. 2v - w D. w - u
Mathematics