Introduction to Sets

Q.

Write the advantages and the disadvantage of the computer.

Q.

What are strengths and weaknesses of a computer system?

Q.

How is computer useful to us?

Q. What Begins With T, Ends With T, and Has T in It?

Q.

What Is Technologically Accessible

Q.

A collection of well-defined distinct objects is called a ______.

Q.

Write a difference between CUI and GUI.

Q.

State whether the given collection forms a set or not:

A collection of beautiful teachers in your school.

Q. Is the following collection, a set? Justify your answer:

(vi) The collection of novels written by Munshi Prem Chand

Q.

Which of the Following Is/Are Mobile Operating System?

1. Android

2. Symbian

3. Both A and B

4. None of these

Q.

Which of the following collections are sets?

Odd numbers

Q.

For each set, given below, state whether it is finite set, infinite set or the null set:

Set of mountains in the world.

Q.

The collection is a set or not a set$?$
The collection of interesting novels in a library.

Q. A collection of all good smartphones is

1. a set.
2. not a set.

Q. Is the following collection, a set? Justify your answer:

(i) A collection of all natural numbers less than 50.

Q.

Check whether the given phrase is a well-defined set or not.

“All rich cricket players in your country.”

Q. Which of the following is/are a set?

1. $\{x:x$ is a natural number and is a big number$\}$
2. The collection of students in Bangalore
3. The collection of all small flowers
4. $\{x:x$ is the tallest member of parliament$\}$

Q. A collection of all good smartphones is

1. a set.
2. not a set.

Q.

Classify the given set as empty set, finite set, infinite set:

$\left\{Thesetofallfruitsintheworld\right\}$

Q.

A collection of your favorite animals will be an example of a

1. Set
2. Not a Set

Q.

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

The set of teachers in your school.

Q.

State whether the given collection forms a set or not:

A collection of all the novels written by Prem Chand.

Q. If A is the set of months in a year of an English calendar, then set A is

यदि A अंग्रेजी कैलेंडर के एक वर्ष में महिनों का समुच्चय है, तब समुच्चय A है

1. A singleton set
   
   एकल समुच्चय
2. An empty set
   
   एक रिक्त समुच्चय
   
3. A finite set
   
   एक परिमित समुच्चय
   
4. An infinite set
   
   एक अपरिमित समुच्चय
   

Q.

Identify the given collection as set. If not a set, give reason.

All yellow fruits.

Q. If $A$ is the set of letters of the word $"damascus",$ then the letter is an element of the set $A.$

1. $d$
2. $b$
3. $z$

Q. Let $\bigcup _{i=1}^{50}{X}_i=\bigcup _{i=1}^n{Y}_i=T,$ where each $X_i$ contains $10$ elements and each $Y_i$ contains $5$ elements. If each element of the set $T$ is an element of exactly $20$ of sets $X_i$'s and exactly $6$ of sets $Y_i$'s, then $n$ is equal to

1. $50$
2. $15$
3. $45$
4. $30$

Q.

Which of the following collections represent a set?

1. a collection of good books.

2. a collection of good movies.

3. a collection of vowels in the English alphabet.

4. a collection of beautiful necklaces.

Q. A collection of factors of 52 is

1. a set.
2. not a set.

Q. If A is the set of months in a year of an English calendar, then set A is

यदि A अंग्रेजी कैलेंडर के एक वर्ष में महिनों का समुच्चय है, तब समुच्चय A है

1. A singleton set
   
   एकल समुच्चय
2. An empty set
   
   एक रिक्त समुच्चय
   
3. A finite set
   
   एक परिमित समुच्चय
   
4. An infinite set
   
   एक अपरिमित समुच्चय
   

Q. Which of the following is an empty set?

1. The set of prime numbers which are even
2. The solution set of $\frac{2(2x+3)}{x+1}-\frac{2}{x+1}-4=0,x\in R-\{-1\}$
3. The set of real numbers which satisfy $x^2+ix+i-1=0$
4. $(A-B)\cap (B-A),$ where $A\&B$ are any two sets.