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

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

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

**Question 1** : Find the angle between line and the plane 2x - y + 2z -13 = 0. (View Answer Video)

**Question 2** : If a line marks angles and with x, y and z-axis respectively, where is acute, then find . (View Answer Video)

**Question 3** : 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 4** : Find the equation of the plane that contains the point (1, -1, 2) and is perpendicular to both the planes 2x + 3y - 2z = 5 and x + 2y - 3z = 8. Hence find the distance of point P(-2, 5, 5) from the plane obtained above. (View Answer Video)

**Question 5** : Find the intercepts cut off by the plane 2x + y - z = 5. (View Answer Video)

**Question 1** : A balloon, which always remains spherical on inflation, is being inflated by pumping in 900 cubic centimetres of gas per second. Find the rate at which the radius of the balloon increases when the radius is 15 cm. (View Answer Video)

**Question 2** : The normal at the point (1,1) on the curve is (View Answer Video)

**Question 3** : The line y = mx + 1 is a tangent to the curve if the value of m is: (View Answer Video)

**Question 4** : A balloon, which always remains spherical has a variable radius. Find the rate at which its volume is increasing with the radius when the later is 10 cm. (View Answer Video)

**Question 5** : The line y = x + 1 is a tangent to the curve at the point: (View Answer Video)

**Question 1** : Solve the differential equation:

(View Answer Video)

**Question 2** : Obtain the differential equation of the family of circles passing through the points (a, 0) and (-a, 0). (View Answer Video)

**Question 3** : Obtain the differential equation of all the circles of radius r. (View Answer Video)

**Question 4** : Write the degree of the differential equation : (View Answer Video)

**Question 5** : Find the particular solution of the differential equation given that When x =1. (View Answer Video)

**Question 1** : The objective function is maximum or minimum, which lies on the boundary of the feasible region. (View Answer Video)