Psst.. new poll here.
Psst.. new forums here.
Microsoft is blocking us again (TY IP Reputation!) so just use oauth login instead. :)
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Pasted as Plain Text by joao ( 13 years ago )
5) f(x) contains { x | x E R: (- infinity, 3) U (3,infinity) }
6) f(x) contains { x | x E R: (- infinity, 2) U (2,infinity)}
7) f(x) contains { x | x E R: (- infinity, 5) U (5,infinity)}
8) f(x) contains { x | x E R: (- infinity, 6) U (6,infinity)}
9) f(x) contains { x | x E R: ((- infinity, -7) U (-7,infinity)) n ((- infinity, 9) U (9,infinity))}
10) f(x) contains { x | x E R: ((- infinity, -8) U (-8,infinity)) n ((- infinity, 10) U (10,infinity))}
11) (f+g)(x) = 3x+1 + 2x -6 = 5x -5 and (f+g)(5) = 5(5) -5 = 20
13) (f+g)(x) = x-5+3x^2 = 3x^2 + x -5 and (f+g)(5) = 3(5)^2 + 5 -5 = 3* 25 +5 -5 = 75
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