CBSE Maths 12 Science Vector Algebra Answers for MCQ in English to enable students to get Answers in a narrative video format for the specific question.
Expert Teacher provides CBSE Vector Algebra Maths 12 Science 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 Vector Algebra 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 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 2 : Find the position vector of c which divides the line segment joining A & B whose position vectors are and internally in the ratio
2 : 3. (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 A to B. (View Answer Video)
Question 4 : Find the value of x and y so that the vectors and are equal. (View Answer Video)
Question 5 : Find a vector in the direction of vector which has magnitude 8 unit. (View Answer Video)
Question 1 : If |A| = 0, then A is, (View Answer Video)
Question 2 : Find the inverse of the matrix . (View Answer Video)
Question 3 : 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 4 : Find the equation of the line joining (3, 1) and (9, 3) using determinants. (View Answer Video)
Question 5 : Using the properties of determinants, evaluate . (View Answer Video)
Question 1 : Let defined as f(x) = x be an identity function. Then, (View Answer Video)
Question 2 : Let * be the binary operation on N given by a * b = LCM of a and b. Find 5 * 7. (View Answer Video)
Question 3 : If and are onto, then is: (View Answer Video)
Question 4 : * is a binary operation on Z such that: a * b = a + b + ab. The solution of (3* 4) *x = – 1 is,
(View Answer Video)
Question 5 : Number of binary operations on the set { a, b} are: (View Answer Video)
Question 1 : The normal to the curve passing (1, 2) is: (View Answer Video)
Question 2 : The normal at the point (1, 1) on the curve is; (View Answer Video)
Question 3 : Find approximate value of. (View Answer Video)
Question 4 : The slope of the tangent to the curve at the point (2,-1) is _______________. (View Answer Video)
Question 5 : Sand is pouring from a pipe at the rate of . The falling sand forms a cone on the ground in such a way that the height of the cone is always one-sixth of the radius of the base. How fast is the height of the sand cone increasing, when the height is 4 cm? (View Answer Video)