Set of Natural Numbers - Mock test Q5

Aaryamann Singh

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Nov 18, 2020, 10:18:32 AM11/18/20

to Discussion forum for Mathematics for Data Science I

Does the set of natural numbers for this course include 0? Q5 has its answer marked as excluding 0, while the professor stated that this set would include 0 for this course. Could someone clarify that?

Milind Patwardhan

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Nov 18, 2020, 10:51:17 AM11/18/20

to Discussion forum for Mathematics for Data Science I, Aaryamann Singh

yes I am also in same doubt..

My Suggestion to IIT authorities : Please use the Symbol No ( N zero ) everywhere in qualifier question papers to denote that it means natural numbers as 0,1,2,3....infinity ( As explained by professors in Learning Videos ). SO that just because of differences in assumptions we wont loose the marks.

Milind Patwardhan

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Nov 18, 2020, 10:58:09 AM11/18/20

to Discussion forum for Mathematics for Data Science I, Aaryamann Singh

For Q 5 , it does not matter if you include or exclude zero in Natural Numbers. Because if you include 0, the result of functions - both in Option 4 and 5 is 0. And if you exclude it, then Domain and range both start from 1.

On Wednesday, November 18, 2020 at 8:48:32 PM UTC+5:30 Aaryamann Singh wrote:

D D

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Nov 21, 2020, 6:02:53 AM11/21/20

to Discussion forum for Mathematics for Data Science I, Milind Patwardhan, Aaryamann Singh

0 ins not even

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