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This document contains mathematical equations and symbols but provides no context or explanation. It includes variables such as a, t, u, g, X, Y and mathematical operations like addition, subtraction, and equals signs but does not form coherent statements or solutions.
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- 1. 2 a = 0) t g) u = 0)
- 3. t = g XY X
- 4. 1. A D 2. A C 3. A C ( X) 4. B D ( Y) 5.