12 Science Maths CBSE Determinant Solutions for MCQ in English to enable students to get Solutions in a narrative video format for the specific question.
Expert Teacher provides 12 Science Maths CBSE Determinant Solutions for MCQ 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 Determinant 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:
Evaluate the determinants in :.
Solution Video in English:
You can select video Solutions from other languages also. Please check Solutions in ( Hindi )
Question 1 : Evaluate . (View Answer Video)
Question 2 : Evaluate . (View Answer Video)
Question 3 : If x, y, z are non-zero real numbers, then the inverse of matrix is, (View Answer Video)
Question 4 : If A is an invertible matrix of order 2, then is equal to, (View Answer Video)
Question 5 : If area of a triangle is 35 sq unit with vertices (2, -6), (5, 4) and (k, 4), then k is, (View Answer Video)
Question 1 : If a line marks angles and with x, y and z-axis respectively, where is acute, then find . (View Answer Video)
Question 2 : Find the angle between line and the plane 2x - y + 2z -13 = 0. (View Answer Video)
Question 3 : A line passes through the point with position vector and makes angles and with x, y and z-axis respectively. Find the equation of the line in the Cartesian form. (View Answer Video)
Question 4 : Find the equation of the plane passing through the point (-1, 3, 2) and perpendicular to each of the planes x + 2y + 3z = 5 and 3x + 3y + z = 0. (View Answer Video)
Question 5 : Write the direction ratio's of the vector where and (View Answer Video)
Question 1 : A tank with a rectangular base and rectangular sides, open at the top is to be constructed so that its depth is 2m and volume is If the building of tank costs Rs.70 per sq meter for the base and Rs.45 per sq meter for sides. What is the cost of least expensive? (View Answer Video)
Question 2 : Find the maximum value of in the interval [1,3]. find the maximum value of the same function in [-3,-1]. (View Answer Video)
Question 3 :
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 :
Question 4 : The slope of the normal to the curve at x = 0 is: (View Answer Video)
Question 5 : The normal at the point (1,1) on the curve is (View Answer Video)
Question 1 : If and are two equal vectors, then write the value of (View Answer Video)
Question 2 : Find the area of the triangle with vertices A(1, 1, 2), B(2, 3, 5) and C(1, 5, 5). (View Answer Video)
Question 3 : Find the angle between the vectors and (View Answer Video)
Question 4 : Find a vector in the direction of that has magnitude 7 units. (View Answer Video)
Question 5 : Find the scalar quantities from the following:
(i) Time period (ii) Distance (iii) Force
(iv) Velocity (v) Work done (View Answer Video)