Determinant MCQ CBSE Maths 12 Science Answers in English to enable students to get Answers in a narrative video format for the specific question.
Expert Teacher provides Determinant MCQ CBSE Maths 12 Science Answers 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 Determinant 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:
If=andis Cofactor of , then the value of is given by
Answer Video in English:
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Question 1 : If A =, find | A |. (View Answer Video)
Question 2 : Let A be the non- singular square matrix of order , then |adj A| is equal to, (View Answer Video)
Question 3 : Evaluate the determinants:. (View Answer Video)
Question 4 : Which of the following is correct? (View Answer Video)
Question 5 : Find the inverse of the matrix . (View Answer Video)
Question 1 : If a line has direction ratios 2, -1, -2, then what are its direction cosines? (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 direction cosines of the vector joining the points A(1, 2, -3) and B(-1, -2, 1) directed from B to A. (View Answer Video)
Question 4 : Find a vector in the direction of vector which has magnitude 8 unit. (View Answer Video)
Question 5 : Find if and (View Answer Video)
Question 1 : Solve the differential equation:
(View Answer Video)
Question 2 : Find the general solution of differential equation (View Answer Video)
Question 3 : Solve the differential equation (View Answer Video)
Question 4 : Write the sum of the order and degree of the differential equation (View Answer Video)
Question 5 : Find the general solution of differential equation (View Answer Video)
Question 1 : The line y = mx + 1 is a tangent to the curve if the value of m is: (View Answer Video)
Question 2 : The approximate change in the volume of a cube of side x meters caused by increasing the side by 3% is, (View Answer Video)
Question 3 : Find the equation of the tangent to the curve at the points, where it cuts the x axis. (View Answer Video)
Question 4 : The total revenue in rupees received from the sale of x units of a product is given by . The marginal revenue, when x=15 is: (View Answer Video)
Question 5 : Find the approximate change in the surface area of a cube of side x meters caused by decreasing the side by 1%. (View Answer Video)