CBSE MCQ in English Answers for Maths 12 Science Matrices

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

Expert Teacher provides CBSE MCQ Answers for Maths 12 Science 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:

 Find the value of z, if Question. 

Answer Video in English:

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

Similar Questions from CBSE, 12th Science, Maths, Matrices

Question 1 : Compute: Question. (View Answer Video)

Question 2 : Find the value of x,  from the equation: Question. (View Answer Video)

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

Question 4 : Find the value of x, if Question. (View Answer Video)

Question 5 : Compute: Question. (View Answer Video)

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

Relations and Functions

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 Question. (View Answer Video)

Question 2 : If Question is a relation on N, write the range of R. (View Answer Video)

Question 3 : If f and g two functions such that they are one-one then g o f is: (View Answer Video)

Question 4 :  If f is the greatest integer function and g is the modulus function . Write the value of g o f(-1/3) – f o g ( -1/3 ) . (View Answer Video)

Question 5 : Functions Question are defined respectively, by Question, find Question .  (View Answer Video)

Probability

Question 1 :  Probability of solving specific problem independently by A and B are Question and Question respectively. If both try to solve the problem, independently, then find the probability that the problem is solved.
  (View Answer Video)

Question 2 : Assume that the chances of a patient having a heart attack are 40%. Assume that a meditation and yoga course reduces the risk of heart attack by 30% and the prescription of certain drugs and certain restrictions reduces the risk by 25%. At a time, a patient choses only one of the two options with equal probabilities. After going through one of the two options, the patient is selected at random who is suffering from a heart attack. Find the probability that the patient followed a course of meditation and yoga. Write the value referred here.      (View Answer Video)

Question 3 : If P(A)=Question, P(B)=Question and Question=Question, find Question. (View Answer Video)

Question 4 :  Bag I contains 3 red and 4 black balls and Bag II contains 4 red and 5 black balls. Two balls are transferred at random from Bag I to Bag II and then a ball is drawn from Bag II.  The ball so drawn is found to be red in colour. Find the probability that the transferred balls were both black.   (View Answer Video)

Question 5 : In a group of 30 scientists workings on an experiment, 20 never commit error in their work and are reporting results elaborately. Two scientists are selected at random from the group. Find the probability distribution of the number of selected scientists who never commit error in work and reporting. Also find the mean of the distribution. What values are described in this question?  (View Answer Video)

Continuity and Differentiability

Question 1 : Differentiate w.r.t.x the function Question, for some constant a and b. (View Answer Video)

Question 2 : Differentiate w.r.t.x the function Question. (View Answer Video)

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

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

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