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## Section9.1Videos and Daily Work

### Subsection9.1.1Daily Work 19: Normal Subgroups and Factor Groups

See these videos within their full playlist here: https://www.youtube.com/watch?v=vFNbtB6Y4v4%26t=0s%26list=PLL0ATV5XYF8AQZuEYPnVwpiFy0jEipqN-%26index=56 Then, complete Daily Work 19 at this link: http://matthematics.com/quiz/dw19-9/

### Subsection9.1.2Daily Work 20: Cauchy's Theorem

See these videos within their full playlist here: https://www.youtube.com/watch?v=vFNbtB6Y4v4%26t=0s%26list=PLL0ATV5XYF8AQZuEYPnVwpiFy0jEipqN-%26index=60 Then, complete Daily Work 20 at this link: http://matthematics.com/quiz/dw20-9/

### Subsection9.1.3Extra: Classifying Prime-Square Groups

See these videos within their full playlist here: https://www.youtube.com/watch?v=vFNbtB6Y4v4%26t=0s%26list=PLL0ATV5XYF8AQZuEYPnVwpiFy0jEipqN-%26index=62