Write the first four terms of the sequence.an = (-1)n-12-n

A. a1 = 1, a2 = -4, a3 = 9, a4 = -16
B. a1 = , a2 = - , a3 = , a4 = - 
C. a1 = - , a2 =  , a3 = - , a4 = 
D. a1 = -2, a2 = 4, a3 = -8, a4 = 16


Answer: B

Mathematics

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Construct a truth table for the statement.~(~(s ? q))

A.

TFT
F T F
B.
TTT
T F T
F T F
F F F
C.
TTF
T F F
F T F
F F T
D.
TTT
T F T
F T T
F F F

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Divide. ÷ 

A. -  
B.
C.  
D. -  

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