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

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

** If f(x) = ax + b and g(x) = cx + d, then f[g(x)] – g[f(x)] is equivalent to, **

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

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

**Question 1** : Let * be any binary operation on the set R defined by a * b = a + b – ab, then the binary operation * is, (View Answer Video)

**Question 2** : If f(x) = ax + b and g(x) = cx + d, then f[g(x)] – g[f(x)] is equivalent to, (View Answer Video)

**Question 3** : Let * be the binary operation on N given by a * b = LCM of a and b. Find 5 * 7. (View Answer Video)

**Question 4** : Consider a binary operation * on N defined as . Choose the correct answer. (View Answer Video)

**Question 5** : The number of binary operations which can be defined on the set is, (View Answer Video)

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

**Question 2** : Using the fact that and the differentiation, obtain the sum formula for cosines. (View Answer Video)

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

**Question 4** : Differentiate the function with respect to x. (View Answer Video)

**Question 5** : Differentiate the function with respect to x. (View Answer Video)

**Question 1** : Find the sum of the vectors : (View Answer Video)

**Question 2** : L and M are two points with position vectors and respectively. Write the position vectors of a point N which divides the line segment LM in the ratio 2:1 externally. (View Answer Video)

**Question 3** : Find the value of x and y so that the vectors and are equal. (View Answer Video)

**Question 4** : Find the magnitude of two vectors a and b having the same magnitude and such that the angle between them is and their scalar product is 1/2. (View Answer Video)

**Question 5** : Find a vector in the direction of vector which has magnitude 21 units. (View Answer Video)