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

Expert Teacher provides CBSE MCQ Maths 12 Science Three Dimensional Geometry 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 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:**

** Find the angle between the planes 7x + 2y + 6z = 15 and 3x - y + 10z = 17. **

** Answer Video in** **English****:**

**Question 1** : Find the co-ordinates of the point where the line through the points A (3, 4, 1) and B (5, 1, 6) crosses the XY-plane. (View Answer Video)

**Question 2** : Find the co-ordinates of the point, where the line intersects the plane x-y+z-5=0. Also find the angle between the line and the plane. (View Answer Video)

**Question 3** : Write the vector equation of the plane passing through the point (a, b, c) and parallel to the plane (View Answer Video)

**Question 4** : Find the distance of the point from the plane 3x + y - z + 2+0 measured parallel to the line Also, find the foot of the perpendicular from the given point upon the given plane. (View Answer Video)

**Question 5** : Find the co-ordinates of the point where the line through the points (3, -4, -5) and (2, -3, 1) crosses the plane

2x + y + z = 7. (View Answer Video)

**Question 1** : If , write the value of"x". (View Answer Video)

**Question 2** : Find the value of Y, if and . (View Answer Video)

**Question 3** : Given, , find the value of w. (View Answer Video)

**Question 4** : Given, , find the value of y. (View Answer Video)

**Question 5** : Find the value of X, if and . (View Answer Video)

**Question 1** : Let * be the binary operation on N given by a * b = LCM of a and b. Find 20 * 16. (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** : * 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 4** : Let * be the binary operation on N given by a * b = LCM of a and b. Find the identity of * in N? (View Answer Video)

**Question 5** : Let A = {1, 2, 3}. Then, number of relations containing (1, 2) and (1, 3) which are reflexive and symmetric but not transitive is, (View Answer Video)

**Question 1** : Find the area of the parallelogram whose adjacent sides are determined by the vectors and (View Answer Video)

**Question 2** : Find the vector quantities from the following:

(i) Time period (ii) Distance (iii) Force

(iv) Velocity (v) Work done

(View Answer Video)

**Question 3** : Write the value of for which the vectors and are parallel vectors. (View Answer Video)

**Question 4** : Find the scalar components of the vector with initial point A (2, 1) and terminal point B (-5, 7). (View Answer Video)

**Question 5** : Find a vector of magnitude making an angle of with x-axis, with y-axis and an acute angle with z-axis. (View Answer Video)