Use Range to create the list {1,2,3,4}.

3.1

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Make a list of numbers up to 100.

3.2

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Use Range and Reverse to create {4,3,2,1}.

3.3

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Make a list of numbers from 1 to 50 in reverse order.

3.4

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Use Range, Reverse and Join to create {1,2,3,4,4,3,2,1}.

3.5

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Plot a list that counts up from 1 to 100, then down to 1.

3.6

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Use Range and RandomInteger to make a list with a random length up to 10.

3.7

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Find a simpler form for Reverse[Reverse[Range[10]]].

3.8

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Find a simpler form for Join[{1,2},Join[{3,4},{5}]].

3.9

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Find a simpler form for Join[Range[10],Join[Range[10],Range[5]]].

3.10

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Find a simpler form for Reverse[Join[Range[20],Reverse[Range[20]]]].

3.11

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Compute the reverse of the reverse of {1,2,3,4}.

x3.1

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Use Range, Reverse and Join to create the list {1,2,3,4,5,4,3,2,1}.

x3.2

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Use Range, Reverse and Join to create {3,2,1,4,3,2,1,5,4,3,2,1}.

x3.3

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Plot the list of numbers {10,11,12,13,14}.

x3.4

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Find a simpler form for Join[Join[Range[10],Reverse[Range[10]]],Range[10]].

x3.5

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