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

Expert Teacher provides Three Dimensional Geometry Maths 12 Science CBSE Solutions for MCQ 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 direction ratio's of the vector where and **

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

**Question 1** : Find the distance of the plane : 3x - 4y + 12z = 3 from the origin. (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** : If a line has direction ratios 2, -1, -2, then what are its direction cosines? (View Answer Video)

**Question 4** : Find the distance of the point (1, -2, 3) from the plane x-y+z=5 measured parallel to the line (View Answer Video)

**Question 5** : Find the vector equation of a plane which is at a distance of 5 units from the origin and its normal vector is (View Answer Video)

**Question 1** : A tank with a rectangular base and rectangular sides, open at the top is to be constructed so that its depth is 2m and volume is If the building of tank costs Rs.70 per sq meter for the base and Rs.45 per sq meter for sides. What is the cost of least expensive? (View Answer Video)

**Question 2** : The approximate change in the volume of a cube of side x meters caused by increasing the side by 3% is, (View Answer Video)

**Question 3** : For all real values of x the minimum value of. (View Answer Video)

**Question 4** : Equation of normal to the curve x+y=x^y where it cuts x-axis; is (View Answer Video)

**Question 5** : Find approximate value of (View Answer Video)

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

**Question 2** : Find the transpose of the matrix: . (View Answer Video)

**Question 3** : Matrices A and B will be inverse of each other only if : (View Answer Video)

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

**Question 5** : Find the transpose of the matrix: . (View Answer Video)

**Question 1** : Find the area of the given curves and given lines:

and x-axis (View Answer Video)

**Question 2** : Find the area of the region bounded by the curves and x = 3. (View Answer Video)

**Question 3** : Using the method of integration find the area of the triangle ABC, coordinates of whose vertices are A(2, 0), B(4, 5) and C(6, 3). (View Answer Video)

**Question 4** : Using the method of integration, find the area of the triangular region whose vertices are (2, -2), (4, 3) and (1, 2). (View Answer Video)

**Question 5** : Using the method of integration find the area bounded by the curve |x| + |y| = 1. (View Answer Video)