i. false: 4+3>64+3>6 ii. true: 1+3<61+3<6 iii. false: 2\cdot1^2+1=32⋅1 2 +1=3 2\cdot2^2+2=102⋅2 2 +2=10 2\cdot3^2+3=212⋅3 2 +3=21 2\cdot4^2+4=362⋅4 2 +4=36

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false: $4+3>6$

ii.

true: $1+3<6$

iii.

false:

$2\cdot1^2+1=3$

$2\cdot2^2+2=10$

$2\cdot3^2+3=21$

$2\cdot4^2+4=36$

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