Maths Three Dimensional Geometry CBSE 12 Science Answers for MCQ in English to enable students to get Answers in a narrative video format for the specific question.
Expert Teacher provides Maths Three Dimensional Geometry CBSE 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 Three Dimensional Geometry 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:
Question 1 : If a line has direction ratios 2, -1, -2, then what are its direction cosines? (View Answer Video)
Question 2 : Find the angle between the planes 7x + 2y + 6z = 15 and 3x - y + 10z = 17. (View Answer Video)
Question 3 : Find the distance between the point (-1, -5, -10) and the point of intersection of line and plane
x - y + z = 5. (View Answer Video)
Question 4 : Find the angle between the lines and (View Answer Video)
Question 5 : Find the distance of the plane : 3x - 4y + 12z = 3 from the origin. (View Answer Video)
Question 1 : For given vectors,and find the unit vector in the direction of the vector a + b. (View Answer Video)
Question 2 : Evaluate the product (3a - 5b).(2a + 7b). (View Answer Video)
Question 3 : 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 4 : Find the sum of the vectors and (View Answer Video)
Question 5 : Find the angle between the vectors and (View Answer Video)
Question 1 : Form the differential equation of the family of circles in the second quadrant and touching the co-ordinate axes. (View Answer Video)
Question 2 : Solve the following differential equation :
(View Answer Video)
Question 3 : If x cos(a + y) = cos y, then prove that
Hence show that (View Answer Video)
Question 4 : Write the differential equation representing the curve where a is an arbitrary constant. (View Answer Video)
Question 5 : Obtain the differential equation of the family of circles passing through the points (a, 0) and (-a, 0). (View Answer Video)
Question 1 : The objective function is maximum or minimum, which lies on the boundary of the feasible region. (View Answer Video)