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chapter10
- 10-1 part1 19:26
- 10-1part2 23:52
- 10-2part1 28:06
- (10-2)horizontal and vertical tangent line 24:50
- 10-3 34:36
- 10-4 36:08
- 10-5 11:10
- Exercise (10-1): 2, 4 ,5, 21 ,25 ,27 28:08
- Exercise (10-2): 1 ,5 ,11, 21 22:03
- Exercise (10-3):1b, 2a ,7b 07:09
- Exercise (10-4): 1 4 7 8 9 12 13 15 19 21 25:49
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chapter10
