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

Expert Teacher provides Maths 12 Science Relations and Functions CBSE Answers for MCQ through Video Answers 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 Answer in a narrative video format.

** Question:**

** Consider given by f(x) = 4x + 3. Find the inverse of f. **

** Answer Video in** **English****:**

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

**Question 1** : What type of function is the sine function in R? (View Answer Video)

**Question 2** : The function, f(x) = 2x + 1 is, (View Answer Video)

**Question 3** : Letbe defined as f(x) = 3x. (View Answer Video)

**Question 4** : If f is the greatest integer function and g is the modulus function . Write the value of g o f(-1/3) – f o g ( -1/3 ). (View Answer Video)

**Question 5** : Let defined as f(x) = x be an identity function. Then, (View Answer Video)

**Question 1** : In a hockey match, both teams A and B scored same number of goals up to the end of the game, so to decide the winner, the referee asked both the captains to throw a die alternately and decided that the team, whose captain gets a six first, will be declared the winner. If the captain of the team A was asked to start, find their respective probabilities of winning the match and state whether the decision of the referee was fair or not. (View Answer Video)

**Question 2** : A problem in mathematics is given to 4 students A, B, C, D. Their chances of solving the problem, respectively, are and . What is the probability that atmost one of them solve the problem? (View Answer Video)

**Question 3** : Of the students in a college, it is known that 60% reside in hostel and 40% are day scholars (not residing in hostel). Previous year results report that 30% of all students who reside in hostel attain 'A' grade and 20% of day scholars attain 'A' grade in their annual examination. At the end of the year, one student is chosen at random from the college and he has an 'A' grade. What is the probability that the student is a hosteler? (View Answer Video)

**Question 4** : If and then find . (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 respectively.

(View Answer Video)

**Question 1** : Find . (View Answer Video)

**Question 2** : Evaluate : (View Answer Video)

**Question 3** : Evaluate : . (View Answer Video)

**Question 4** : Find . (View Answer Video)

**Question 5** : Find : (View Answer Video)

**Question 1** : Find for the function . (View Answer Video)

**Question 2** : If x and y are connected parametrically by the equation , without eliminating the parameter, find . (View Answer Video)

**Question 3** : Differentiate the function with respect to x. (View Answer Video)

**Question 4** : Find the second order derivative of the function . (View Answer Video)

**Question 5** : Differentiate w.r.t.x the function , for some constant a and b. (View Answer Video)