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

Expert Teacher provides MCQ Solutions for CBSE Maths 12 Science Three Dimensional Geometry 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 distance of the point (-1, -5, -10) from the point of intersection of the line joining the points A(2, -1, 2) and B(5, 3, 4) with the plane x - y + z = 5. (View Answer Video)

**Question 2** : Find the vector and cartesian equations of the plane passing through the point (-1, 3, 2) and perpendicular to each of the planes x + 2y +3z = 5 and

3x + 3y + z = 0. (View Answer Video)

**Question 3** : 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 4** : 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 5** : Find the cartesian equation of the line which passes through the point (-2, 4, -5) and is parallel to the line (View Answer Video)

**Question 1** : Differentiate w.r.t.x the function . (View Answer Video)

**Question 2** : If x and y are connected parametrically by the equation , without eliminating the parameter, find . (View Answer Video)

**Question 3** : Differentiate w.r.t.x the function . (View Answer Video)

**Question 4** : Differentiate the function with respect to x. (View Answer Video)

**Question 5** : If , find in terms of y alone. (View Answer Video)

**Question 1** : Matrices A and B will be inverse of each other only if : (View Answer Video)

**Question 2** : If , write the value of"x". (View Answer Video)

**Question 3** : Let Find BA. (View Answer Video)

**Question 4** : Find the transpose of the matrix: . (View Answer Video)

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

**Question 1** : A die is rolled. If E= (1, 3, 5), F(2, 3) and G= {2, 3, 4, 5}, find . (View Answer Video)

**Question 2** : Of the students in a college, it is known that 60% reside in hostel and 40% are day scholars (not residing in hostel). Previous year results report that 30% of all students who reside in hostel attain 'A' grade and 20% of day scholars attain 'A' grade in their annual examination. At the end of the year, one student is chosen at random from the college and he has an 'A' grade. What is the probability that the student is a hosteler? (View Answer Video)

**Question 3** : In a group of 400 people, 160 are smokers and non-vegetarian, 100 are smokers and vegetarian and the remaining are non-smokers and vegetarian. The probabilities of getting a special chest disease are 35%, 20% and 10% respectively. A person is chosen from the group at random and is found to be suffering from the disease. What is the probability that the selected person is a smoker and non-vegetarian? What value is reflected in this question? (View Answer Video)

**Question 4** : Probability of solving specific problem independently by A and B are and respectively. If both try to solve the problem, independently, then find the probability that the problem is solved.

(View Answer Video)

**Question 5** : A girl throws a die. If she gets a 5 or 6, she tosses a coin three times and notes the number of heads. If she gets 1, 2, 3 or 4, she tosses a coin two times and notes the number of heads obtained. If she obtained exactly two heads, what is the probability that she threw 1, 2, 3, or 4 with the die? (View Answer Video)