MCQ in English Relations and Functions Solutions for CBSE Maths 12 Science to enable students to get Solutions in a narrative video format for the specific question.

Expert Teacher provides MCQ Relations and Functions Solutions for CBSE Maths 12 Science through Video Solutions in English language. This video solution will be useful for students to understand how to write an answer in exam in order to score more marks. This teacher uses a narrative style for a question from Relations and Functions not only to explain the proper method of answering question, but deriving right answer too.

Please find the question below and view the Solution in a narrative video format.

** Question:**

** Let defined as f(x) = x be an identity function. Then, **

** Solution Video in** **English****:**

You can select video Solutions from other languages also. Please check Solutions in ( Hindi )

**Question 1** : If is defined by , write f(f(x)). (View Answer Video)

**Question 2** : Let A = {1, 2, 3}. Then, number of equivalence relations containing (1, 2) are, (View Answer Video)

**Question 3** : Consider given by f(x) = 4x + 3. Find the inverse of f. (View Answer Video)

**Question 4** : Let * be the binary operation on N given by a * b = LCM of a and b. Find 20 * 16. (View Answer Video)

**Question 5** : Consider a binary operation * on N defined as . Choose the correct answer. (View Answer Video)

**Question 1** : Given, , find the value of w. (View Answer Video)

**Question 2** : Find the value of c from the equation: . (View Answer Video)

**Question 3** : Given, , find the value of y. (View Answer Video)

**Question 4** : Find the inverse of the matrix, . (View Answer Video)

**Question 5** : Find the value of z, if . (View Answer Video)

**Question 1** : A man is known to speak the truth 3 out of 5 times. He throws a die and reports that it is 1. Find the probability that it is actually 1. (View Answer Video)

**Question 2** : A bag contain 2 red, 6 black and 8 green balls. A ball is drawn at random from the bag. Find the probability of black balls:

(View Answer Video)

**Question 3** : A and B throw a pair of dice alternately. A wins the game if he gets a total of 7 and B wins the game if he gets a total of 10. If A starts the game, the find the probability that B wins. (View Answer Video)

**Question 4** : A die is thrown 6 times. If 'getting an odd number' is a 'success', what is the probability of obtaining:

atleast 5 successes?

(View Answer Video)

**Question 5** : Three cards are drawn without replacement from a pack of 52 cards. Find the probability that the cards drawn are king, queen and jack.

(View Answer Video)

**Question 1** : The line y = mx + 1 is a tangent to the curve if the value of m is: (View Answer Video)

**Question 2** : Find the maximum profit that a company can make if the profit function is. (View Answer Video)

**Question 3** : Find two numbers whose sum is 24 and whose product is as large as possible. (View Answer Video)

**Question 4** : On which of the following intervals in the function strictly decreasing? (View Answer Video)

**Question 5** : The slope of the normal to the curve at x = 0 is :

(View Answer Video)