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****:**

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

**Question 1** : The law a + b = b + a is called ______. (View Answer Video)

**Question 2** : * is a binary operation on Z such that: a * b = a + b + ab. The solution of (3* 4) *x = – 1 is,

(View Answer Video)

**Question 3** : Functions are defined respectively, by , find . (View Answer Video)

**Question 4** : If f(x) = |x| and g(x) = | 5x – 2 |. Then, fog = _____. (View Answer Video)

**Question 5** : Number of binary operations on the set {a, b} are : (View Answer Video)

**Question 1** : The objective function is maximum or minimum, which lies on the boundary of the feasible region. (View Answer Video)

**Question 1** : Write the principal value of (View Answer Video)

**Question 2** : Using principal values, write the value of

(View Answer Video)

**Question 3** : Write the principal value of (View Answer Video)

**Question 4** : If find x. (View Answer Video)

**Question 5** : is equal to : (View Answer Video)

**Question 1** : Differentiate the function w.r.t.x . (View Answer Video)

**Question 2** : Find the value of k, if the area of the triangle is 4 sq unit and vertices are (-2, 0), (0, 4), (0, k). (View Answer Video)

**Question 3** : Differentiate the function w.r.t.x . (View Answer Video)

**Question 4** : If , find in terms of y alone. (View Answer Video)

**Question 5** : Find the second order derivative of the function . (View Answer Video)