Question

1) Set of multiples of 7
2) Single digit perfect number
3) Set of all two-digit numbers with digits sum is 3
4) Set of all odd prime numbers.
Which of the following is infinite set?
1) Set of the all multiples of 4 to 100
27 { Set of all multiples of 3 and 5
3) { All prime numbers less than 100}
4) { Set of all factors of 1123}
If A is the finite set having p-elements and then number
2) 2P-1
3) 2p+1
1) 2P
72
where neN
then roster form of Q is
If Q = x/x=
Q={x/x=
n+1​

Answer 1

Answer:

1) { 7, 14, 21, 28, 35, 42, ...}

2) 6

3) {12, 21, 30}

4) {3, 7, 11, 13, 17, 19, ...}

Answer 2

very confusing readibility