Question

Revision on Sets

1. Write the following sets in Roster(Tabular) form:

i. A= { x : 2x + 3 = 11}

ii. B= {x : x is a two digit number and sum of the digits of x is 7}

iii. C = { x : x = n/(n + 2) ; n ƭ N and n >5}

2. Write the following in Set-Builder form:

i. M= { 6, 9, 12, 15,....}

ii. N = { 8, 27, 64, 125, 216,.....}

iii. O= { -5, -4, -3, -2, -1}

3. Write the set of even factors of 124.

4. Write the set of prime factors of 3234.

5. Is { x: x2 – 5x – 6 =0} = {2,3} ?

6. Write the following sets in Roster form:

i. The set of letters of the word ‘ MEERUT’.

ii. A= {x : x = y+ 3, y ƭ N and y > 3 }

iii. U = { x: x is a composite number and 5 ≤ x ≤ 21 }

7. List the elements of the following sets:

i. { x : x2 – 2x – 3 = 0}

ii. { x : x = 2y + 5 ; y ƭ N and 2 ≤ y ≤ 6 }

iii. { x : x is a factor of 24 }

iv. { x : x ƭ Z and x2 ≤ 4 }

v. { x : 3x – 2 ≤ 10 and x ƭ N }

Answer 1

Answer:

Step-by-step explanation: