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 vector equation of the line passing through the point (1, 2, 3) and parallel to the planes and

(View Answer Video)

**Question 2** : If a line has direction ratios 2, -1, -2, then what are its direction cosines? (View Answer Video)

**Question 3** : Find the distance of the point (3, 4, 5) from the plane x + y + z = 2 measured parallel to the line 2x = y = z. (View Answer Video)

**Question 4** : Write the vector equation of the plane passing through the point (a, b, c) and parallel to the plane (View Answer Video)

**Question 5** : If a line marks angles and with x, y and z-axis respectively, where is acute, then find . (View Answer Video)

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

**Question 2** : Find : . (View Answer Video)

**Question 3** : Find the integral of the function . (View Answer Video)

**Question 4** : . (View Answer Video)

**Question 5** : Evaluate: as limit of sums. (View Answer Video)

**Question 1** : If and are two equal vectors, then write the value of (View Answer Video)

**Question 2** : Find the unit vector in the direction of vector PQ, where P and Q are the points (1, 2, 3) and (4, 5, 6) respectively. (View Answer Video)

**Question 3** : Find the magnitude of two vectors a and b having the same magnitude and such that the angle between them is and their scalar product is 1/2. (View Answer Video)

**Question 4** : Find the scalar quantities from the following:

(i) 10 kg (ii) 2 m north-west (iii)

(iv) 40 W (v) (vi) (View Answer Video)

**Question 5** : 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 1** : Find the value of x from the equation: . (View Answer Video)

**Question 2** : Find the value of x from the equation: . (View Answer Video)

**Question 3** : Find the value of Y, if and . (View Answer Video)

**Question 4** : Find the value of y, from the equation: . (View Answer Video)

**Question 5** : If , then find "a". (View Answer Video)