9th Maths Unit Test (EM)

 

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1 - Marks Answer Key

1. 7 ∈ {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

2. Singleton set

3. 7

4. Ø ⊆ {a,b} 

5. Every real number is an irrational number

6. may be a rational or irrational number

7. π

8. {5, 6} ∈ A