10
16. Show that the points A(1, 2, 7), B(2, 6, 3) and C(3, 10, –1) are collinear.
05
Nov
16. Show that the points A(1, 2, 7), B(2, 6, 3) and C(3, 10, –1) are collinear. –1) are collinear. 10 16. Show that the points A(1 2 3) and C(3 6 7) B(2 November 5, 2021 Category: Chapter 10 - Vector Algebra , Maths , NCERT Exemplar Class 12 ,
3. Verify the following: (ii) (0, 7, 10), (–1, 6, 6) and (– 4, 9, 6) are the vertices of a right angled triangle.
30
Oct
3. Verify the following: (ii) (0, 7, 10), (–1, 6, 6) and (– 4, 9, 6) are the vertices of a right angled triangle. 1 10 3. Verify the following: (ii) (0 6 6) and (4 6) are the vertices of a right angled triangle. 7) 9 October 30, 2021 Category: Chapter 12 - Introduction [...]
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3. Verify the following: (ii) (0 ,
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6) and (4 ,
6) are the vertices of a right angled triangle. ,
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9 ,
3. Verify the following: (i) (0, 7, –10), (1, 6, – 6) and (4, 9, – 6) are the vertices of an isosceles triangle.
30
Oct
3. Verify the following: (i) (0, 7, –10), (1, 6, – 6) and (4, 9, – 6) are the vertices of an isosceles triangle. – 6) are the vertices of an isosceles triangle. 1 10 3. Verify the following: (i) (0 6 6) and (4 7) 9 October 30, 2021 Category: Chapter 12 - Introduction [...]
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– 6) are the vertices of an isosceles triangle. ,
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3. Verify the following: (i) (0 ,
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6) and (4 ,
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Example 10 Find the ratio in which the line segment joining the points (4, 8, 10) and (6, 10, – 8) is divided by the YZ-plane.
30
Oct
Example 10 Find the ratio in which the line segment joining the points (4, 8, 10) and (6, 10, – 8) is divided by the YZ-plane. – 8) is divided by the YZ-plane. 10 10) and (6 8 Example 10 Find the ratio in which the line segment joining the points (4 October 30, 2021 [...]
Example 8 Using section formula, prove that the three points (– 4, 6, 10), (2, 4, 6) and (14, 0, –2) are collinear.
30
Oct
Example 8 Using section formula, prove that the three points (– 4, 6, 10), (2, 4, 6) and (14, 0, –2) are collinear. 10 2 2) are collinear. 4 6 6) and (14 Example 8 Using section formula prove that the three points (– 4 October 30, 2021 Category: Chapter 12 - Introduction to 3D [...]
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Example 8 Using section formula ,
prove that the three points (– 4 ,
1. Which of the following relations are functions? Give reasons. If it is a function, determine its domain and range. (ii) {(2, 1), (4, 2), (6, 3), (8, 4), (10, 5), (12, 6), (14, 7)}
22
Oct
1. Which of the following relations are functions? Give reasons. If it is a function, determine its domain and range. (ii) {(2, 1), (4, 2), (6, 3), (8, 4), (10, 5), (12, 6), (14, 7)} -12 1 1. Which of the following relations are functions? Give reasons. If it is a function 10 14 2 [...]
If A = {3, 6, 9, 12, 15, 18, 21}, B = {4, 8, 12, 16, 20}, C = {2, 4, 6, 8, 10, 12, 14, 16}, D = {5, 10, 15, 20}; find
13
Oct
If A = {3, 6, 9, 12, 15, 18, 21}, B = {4, 8, 12, 16, 20}, C = {2, 4, 6, 8, 10, 12, 14, 16}, D = {5, 10, 15, 20}; find -12 10 14 15 16 … 18 20 20}; find 21 4 6 8 9 b = 4 c = 2 [...]
Let A = {2, 4, 6, 8} and B = {6, 8, 10, 12} then find A ∪ B .
13
Oct
Let A = {2, 4, 6, 8} and B = {6, 8, 10, 12} then find A ∪ B . 10 12} then find A ∪ B . 4 6 8 8) and B (-6 Let A = {2 October 13, 2021 Category: Chapter 1 - Sets , Maths , NCERT Exemplar Class 11 ,
A vessel contains 60,000 molecules of a gas. Due to a very fine hole in the wall, 10,000 molecules escape from the vessel. Then the mean free path of the molecules of the gas
13
Sep
A vessel contains 60,000 molecules of a gas. Due to a very fine hole in the wall, 10,000 molecules escape from the vessel. Then the mean free path of the molecules of the gas 000 molecules escape from the vessel. Then the mean free path of the molecules of the gas 000 molecules of a [...]
93. The marks obtained (out of 20) by 30 students of a class in a test are as follows: 14, 16, 15, 11, 15, 14, 13, 16, 8, 10, 7, 11, 18, 15, 14, 19, 20, 7, 10, 13, 12, 14, 15, 13, 16, 17, 14, 11, 10, 20. Prepare a frequency distribution table for the above data using class intervals of equal width in which one class interval is 4 –8 (excluding 8 and including 4).
12
Jul
93. The marks obtained (out of 20) by 30 students of a class in a test are as follows: 14, 16, 15, 11, 15, 14, 13, 16, 8, 10, 7, 11, 18, 15, 14, 19, 20, 7, 10, 13, 12, 14, 15, 13, 16, 17, 14, 11, 10, 20. Prepare a frequency distribution table for [...]
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20. Prepare a frequency distribution table for the above data using class intervals of equal width in which one class interval is 4 –8 (excluding 8 and including 4). ,
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93. The marks obtained (out of 20) by 30 students of a class in a test are as follows: 14 ,