The third element in the test-suite does not match the image in the problem description.
Remove any row in which a NaN appears
Remove the small words from a list of words.
Get the area codes from a list of phone numbers
Reverse the elements of an array
03 - Matrix Variables 3
02 - Vector Variables 4
07 - Common functions and indexing 3
07 - Common functions and indexing 5
03 - Matrix Variables 4
02 - Vector Variables 2
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