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1. |
Express {x: x= n/ (n+1), n is a natural number less than 7} in roster form: |
A. | {<sup>1</sup>‚ÅÑ<sub>2</sub>, <sup>2</sup>‚ÅÑ<sub>3</sub>, <sup>4</sup>‚ÅÑ<sub>5</sub>, <sup>6</sup>‚ÅÑ<sub>7</sub>} |
B. | {<sup>1</sup>‚ÅÑ<sub>2</sub>, <sup>2</sup>‚ÅÑ<sub>3</sub>, <sup>3</sup>‚ÅÑ<sub>4</sub>, <sup>4</sup>‚ÅÑ<sub>5</sub>, <sup>5</sup>‚ÅÑ<sub>6</sub>, <sup>6</sup>‚ÅÑ<sub>7</sub>, <sup>7</sup>‚ÅÑ<sub>8</sub>} |
C. | {<sup>1</sup>‚ÅÑ<sub>2</sub>, <sup>2</sup>‚ÅÑ<sub>3</sub>, <sup>3</sup>‚ÅÑ<sub>4</sub>, <sup>4</sup>‚ÅÑ<sub>5</sub>, <sup>5</sup>‚ÅÑ<sub>6</sub>, <sup>6</sup>‚ÅÑ<sub>7</sub>} |
D. | Infinite set |
Answer» D. Infinite set | |