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

Expert Teacher provides CBSE Answers for MCQ 12 Science Maths Matrices 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 Matrices 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:**

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

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**Question 1** : If , find (x-y). (View Answer Video)

**Question 2** : Using elementary transformation, find the inverse of the matrix . (View Answer Video)

**Question 3** : Find the value of y from the equation: . (View Answer Video)

**Question 4** : Given, , find the value of x. (View Answer Video)

**Question 5** : If a matrix has 24 elements, what are the possible orders it can have? (View Answer Video)

**Question 1** : If the mapping f and g are given by f = {(1, 2), (3, 5), (4, 1)} and g = {(2, 3), (5, 1), (1, 3)}, Find . (View Answer Video)

**Question 2** : Let R be the relation on the set N given by R ={(a, b): a = b - 2, b > 6}. Choose the correct answer. (View Answer Video)

**Question 3** : The identity element for the binary operation * defined by a * b = , where a, b are the elements of a set of non-zero rational numbers, is, (View Answer Video)

**Question 4** : If and are onto, then is: (View Answer Video)

**Question 5** : The law a + b = b + a is called ______. (View Answer Video)

**Question 1** : Find the co-ordinates of the point where the line through the points (3, -4, -5) and (2, -3, 1) crosses the plane

2x + y + z = 7. (View Answer Video)

**Question 2** : Find the distance of the point (-1, -5, -10) from the point of intersection of the line and plane (View Answer Video)

**Question 3** : Find the equation of the plane passing through the line of intersection of the planes and which is perpendicular to the plane . (View Answer Video)

**Question 4** : Find the distance of the point (2, 12, 5) from the point of intersection of the lines and the plane (View Answer Video)

**Question 5** : If a lines makes angle and with the positive directions of x-axis and z-axis respectively, then find the angle that it makes with the y-axis. (View Answer Video)

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

**Question 2** : Write in the simplest form:

(View Answer Video)

**Question 3** : Solve for

(View Answer Video)

**Question 4** : Write in the simplest form:

(View Answer Video)

**Question 5** : Write the principal value of (View Answer Video)