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

Expert Teacher provides CBSE Maths 12 Science MCQ Three Dimensional Geometry Solutions 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 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 Solution in a narrative video format.

** Question:**

** Write the equation of the straight line through the point and parallel to z-axis. **

** Solution Video in** **English****:**

**Question 1** : 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 2** : Find the distance between the planes 2x+3y+4z=10 and 4x+6y+8z=18. (View Answer Video)

**Question 3** : A plane makes intercepts -6, 3, 4 respectively on the co-ordinte axes. Find the length of the perpendicular from the origin on it. (View Answer Video)

**Question 4** : If a line marks angles and with x, y and z-axis respectively, where is acute, then find . (View Answer Video)

**Question 5** : Find the distance of the point (-1, -5, -10) from the point of intersection of the line and plane (View Answer Video)

**Question 1** : Solve for (View Answer Video)

**Question 2** : Write in the simplest form. (View Answer Video)

**Question 3** : Solve for

(View Answer Video)

**Question 4** : What is principal value of (View Answer Video)

**Question 5** :

Solve the equation:

**Question 1** : Find the scalar quantities from the following:

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

(iv) Velocity (v) Work done (View Answer Video)

**Question 2** : If the vertices A, B, C of a triangle ABC have position vectors (1, 2, 3), (-1, 0, 0), (0, 1, 2) respectively then find <ABC (<ABC is the angle between the vectors BA and BC). (View Answer Video)

**Question 3** : The two vectors and represent the two sides AB and AC, respectively of Find the length of the median

though A. (View Answer Video)

**Question 4** : Find the value of if the points with position vectors and are coplanar. (View Answer Video)

**Question 5** : Write a unit vector in the direction of the sum of vectors : and (View Answer Video)

**Question 1** : Evaluate : (View Answer Video)

**Question 2** : Evaluate : (View Answer Video)

**Question 3** : Evaluate : (View Answer Video)

**Question 4** : Find:

(View Answer Video)

**Question 5** : (View Answer Video)