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

Expert Teacher provides Matrices 12 Science Maths 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 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****:**

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

**Question 1** : Find the value of y, from the equation: . (View Answer Video)

**Question 2** : If, find the value of x. (View Answer Video)

**Question 3** : If , write , where is the transpose of A? (View Answer Video)

**Question 4** : Let Find A + B. (View Answer Video)

**Question 5** : Find the value of Y, if and . (View Answer Video)

**Question 1** : A box contains 50 bolts and 50 nuts. Half of the bolts and nuts are rusted. If two items are drawn with replacement, what is the probability that either both are rusted or both are bolts. (View Answer Video)

**Question 2** : A pair of dice is thrown 4 times. If getting a doublet is considered a success, find the probability distribution of number of successes. Hence, find the mean of the distribution. (View Answer Video)

**Question 3** : One card is drawn from a pack of 52 cards. Find the probability of getting a black face card: (View Answer Video)

**Question 4** : A coin is biased so that the heads is 2 times as likely to occur as tail. If the coin is tossed twice, find the probability distribution of number of tails. Hence find the mean of the distribution. (View Answer Video)

**Question 5** : How many times must a man toss a fair coin, so that the probability of having at least one head is more than 80%. (View Answer Video)

**Question 1** : Compute the magnitude of the following vectors:

(View Answer Video)

**Question 2** : Find |a| and |b|, if (a + b).(a - b) = 8 and |a| = 8|b|. (View Answer Video)

**Question 3** : Find the unit vector in the direction of vector PQ, where P and Q are the points (1, 2, 3) and (4, 5, 6) respectively. (View Answer Video)

**Question 4** : Find if the vectors and are coplanar. (View Answer Video)

**Question 5** : Write a vector in the direction of the vector that has magnitude 9 units. (View Answer Video)

**Question 1** : If y(x) is a solution of the differential equation and y(0) = 1, then find the value of (View Answer Video)

**Question 2** : Form the differential equation of the family of circles touching the x-axis at origin . (View Answer Video)

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

(View Answer Video)

**Question 4** : Solve the following differential equation :

(View Answer Video)

**Question 5** : Obtain the differential equation of all the circles of radius r. (View Answer Video)