Question

1. State which of the following collections are sets:
(i) Six students of our class having weight above
35 kg.
(ii) All the students of our class having weight
below 30 kg
Giii) Ten natural numbers greater than 2.
(iv) Months of a year.
(v) Seven months of a year.
(vi) Last three months of a year.
(vii) All persons having four legs.
(viii) All triangles having two sides.
(ix) All cities of India.
g. Let X be the set of all the letters of the word
"CHANDAN.' Write it in:
() Set builder form (ii) Tabular form
3. Write the following sets in roster form:
(i) The set of factors of 96.
(ii) The set ofletters of the word 'COMBINATION.
(iii) The set of letters of the word
"DESCRIPTION".
(iv) The set of prime numbers S 45.
4. Describe the following sets in set builder form:
(i) la, e, i, o, u
(ii) (April, June, September,
November)
(iii) (February
(iv) (2, 4, 6, 8, 10, 12, 14, 16,
18, 20)
(v) (1, 4, 9, 16, 25, 36, 49)
5. Write the following sets in set builder form or rule
method:
(i) ..., -9, -6, -3,0,3, 6, 9, ...)​

Answer 1

Answer:

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