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| Q.19 | Every open cover of a closed and bounded subset S of real numbers contains a finite subcover of S , i.e. , every closed and bounded subset of R is compact, is known as ______________. | |
| Ans | 1. De Moivre’s theorem | |
| 2. Fundamental theorem | ||
| 3. Four squares theorem | ||
| 4. Heine- burel theorem |
Correct Ans Provided: 4
