SURANJAN SAHA and SABITA SAHA Solutions for Chapter: Sets, Exercise 2: EXERCISE-1(II)

State which of the following sets are finite and which are infinite:

$A=\left\{1,2,3,4,.......,200\right\}$

State which of the following sets are finite and which are infinite:

Collection of all hill-stations in Kerala;

State which of the following sets are finite and which are infinite:

$B=\left\{x:x \in N \text{and} x>4\right\}$

State which of the following sets are finite and which are infinite:

$C=\left\{x: x \text{is a letter of the English Alphabets}\right\};$

State which of the following sets are finite and which are infinite:

$D=\left\{x:x \in N \text{and} x \text{is less than} 4\right\}$

State whether the pairs of sets given below are equal with reasons:

$A=\left\{2,4,1,5\right\} \text{and} B=\left\{5,2,4,1\right\}$

State whether the pairs of sets given below are equal with reasons:

$A=\left\{1,3,5,7,9\right\} \text{and} B=\left\{x:x \text{is odd natural number} <10\right\}$

State whether the pairs of sets given below are equal with reasons:

$A=\left\{x:x \text{is a letter of the word} FOLLOW\right\} \text{and} B=\left\{x: x\text{ is a letter of the word} WOLF\right\}$