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

Expert Teacher provides Solutions for MCQ CBSE 12 Science Maths Relations and Functions 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:**

** Functions are defined respectively, by , find . **

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

## Similar Questions from CBSE, 12th Science, Maths, Relations and Functions

**Question 1** : A function defined as f(x) = 5x is,

**Question 2** : If and are onto, then is:

**Question 3** : A function is surjective if and only if ,

**Question 4** : Let A ={1, 2, 3}. Then number of equivalence relations containing (1, 2) is:

**Question 5** : * is a binary operation on Z such that: a * b = a + b + ab. The solution of (3* 4) *x = – 1 is,

### Questions from Other Chapters of CBSE, 12th Science, Maths

### Determinant

**Question 1** : Let A be square matrix of order 3 * 3, then |kA|is equal to

**Question 2** : Find the area of the triangle with vertices at the points (2, 7), (1, 1), (10, 8).

**Question 3** : Find the equation of the line joining (3, 1) and (9, 3) using determinants.

**Question 4** : If |A| = 0, then A is,

**Question 5** : If , then x is equal to,

### Differential Equations

**Question 1** : Solve the differential equation:

**Question 2** : Obtain the differential equation of all the circles of radius r.

**Question 3** : Find the general solution of differential equation

**Question 4** : Solve the differential equation

**Question 5** : Find the particular solution of the differential equation given that y = 1, when x = 0.

### Application of Integrals

**Question 1** : Find the area of the region bounded by the curve and the line x = 3.

**Question 2** : Find the area of the circle which is interior to the parabola

**Question 3** : Find the area enclosed by the parabola and the line x - y = 4.

**Question 4** : Find the area of the region lying in the first quadrant and bounded by and y = 4.

**Question 5** : Using integration, find the area of the triangle formed by a positive x-axis and tangent and normal to the circle at .