Write the converse of the statement.q ? (p ? r)
A. ~q ? ~(p ? r)
B. ~q ? (p ? r)
C. (p ? r) ? ~q
D. (p ? r) ? q
Answer: D
Mathematics
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A. 2x13 B. x12 C. x13 D. 2x12
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True or false? Suppose that lines m and n are both parallel to k and both pass through a point P (where m, n, and k represent distinct lines and P represents a point not on line k). This is possible in Euclidean and Lobachevskian geometries but not in Riemannian geometry.
A. True B. False
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A. h = S - r
B. h = 
- 1
C. h = 2?(S - r)
D. h = 
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A. 240° B. 60° C. -120° D. -60°
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