De Morgan's Law. Mathematics State Board, Class 9: lessons, tests, tasks.

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1.	De Morgan’s laws for set difference
2.	De Morgan’s laws for complementation
3.	Verify De Morgan's law of complementation using Venn diagram
4.	Mind map

1.	Multiple choice question I Difficulty: easy	3
2.	Multiple choice question II Difficulty: easy	2
3.	Two mark exercise problems I Difficulty: easy	6
4.	Two mark exercise problems II Difficulty: easy	8
5.	Five mark example problems I Difficulty: medium	5
6.	Five mark example problems II Difficulty: medium	5
7.	Five mark example problems III Difficulty: medium	5
8.	Five mark example problems IV Difficulty: medium	5
9.	Five mark exercise problems I Difficulty: medium	5
10.	Five mark exercise problems II Difficulty: medium	5
11.	Five mark exercise problems III Difficulty: hard	5
12.	Five mark exercise problems IV Difficulty: hard	5
13.	Five mark exercise problems V Difficulty: hard	5
14.	Five mark exercise problems VI Difficulty: hard	5
15.	Five mark exercise problems VII Difficulty: hard	0

1.	Choose the correct property Difficulty: easy	2
2.	Evaluate the set Difficulty: easy	2
3.	Select the correct answer Difficulty: easy	2
4.	Perform the set operation Difficulty: medium	4
5.	Prove De Morgan's law for set difference Difficulty: medium	4
6.	Solve using Venn diagram Difficulty: medium	4
7.	Find the correct answer Difficulty: medium	5
8.	Determine the elements of resultant sets Difficulty: hard	5
9.	Verify the set operation Difficulty: hard	5
10.	Prove the set operation Difficulty: hard	5
11.	Find the elements of resultant sets Difficulty: hard	8

1.	Choose the correct answer Difficulty: easy	1
2.	Find (B U C)' Difficulty: medium	2

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Methodical recommendation

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