4
3. Name the octants in which the following points lie: (1, 2, 3), (4, –2, 3), (4, –2, –5), (4, 2, –5), (– 4, 2, –5), (– 4, 2, 5), (–3, –1, 6) (– 2, – 4, –7).
30
Oct
3. Name the octants in which the following points lie: (1, 2, 3), (4, –2, 3), (4, –2, –5), (4, 2, –5), (– 4, 2, –5), (– 4, 2, 5), (–3, –1, 6) (– 2, – 4, –7). 1 2 3. Name the octants in which the following points lie: (1 3% 4 5 6 [...]
Example 12 Find the equation of the set of the points P such that its distances from the points A (3, 4, –5) and B (– 2, 1, 4) are equal.
30
Oct
Example 12 Find the equation of the set of the points P such that its distances from the points A (3, 4, –5) and B (– 2, 1, 4) are equal. –5) and B (– 2 1 4 4) are equal. Example 12 Find the equation of the set of the points P such that [...]
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 ,
Example 7 Find the coordinates of the point which divides the line segment joining the points (1, –2, 3) and (3, 4, –5) in the ratio 2 : 3 (i) internally, and (ii) externally.
30
Oct
Example 7 Find the coordinates of the point which divides the line segment joining the points (1, –2, 3) and (3, 4, –5) in the ratio 2 : 3 (i) internally, and (ii) externally. –5) in the ratio 2 : 3 (i) internally 2 3) and (–3 4 and (ii) externally. Example 7 Find the [...]
Example 6 Find the equation of set of points P such that PA^2 + PB^2 = 2k^2 , where A and B are the points (3, 4, 5) and (–1, 3, –7), respectively.
30
Oct
Example 6 Find the equation of set of points P such that PA^2 + PB^2 = 2k^2 , where A and B are the points (3, 4, 5) and (–1, 3, –7), respectively. 3% 4 5) and (–1 7) Example 6 Find the equation of set of points P such that PA^2 + PB^2 = [...]
Example 1 In Fig 12.3, if P is (2,4,5), find the coordinates of F.
30
Oct
Example 1 In Fig 12.3, if P is (2,4,5), find the coordinates of F. 4 5 Example 1 In Fig 12.3 find the coordinates of F. if P is (2 October 30, 2021 Category: Chapter 12 - Introduction to 3D Geometry , Maths , NCERT Exemplar Class 11 ,
Example 13 Find the equation of the ellipse, with major axis along the x-axis and passing through the points (4, 3) and (– 1,4).
30
Oct
Example 13 Find the equation of the ellipse, with major axis along the x-axis and passing through the points (4, 3) and (– 1,4). 3) and (– 1 4 Example 13 Find the equation of the ellipse with major axis along the x-axis and passing through the points (4 October 30, 2021 Category: Chapter 11 [...]
7. Passing through the points (–1, 1) and (2, – 4).
30
Oct
7. Passing through the points (–1, 1) and (2, – 4). 1 and 2 4 7. Passing through the points (–1 October 30, 2021 Category: Chapter 10 - Straight Lines , Maths , NCERT Exemplar Class 11 ,
9. Without using distance formula, show that points (– 2, – 1), (4, 0), (3, 3) and (–3, 2) are the vertices of a parallelogram.
27
Oct
9. Without using distance formula, show that points (– 2, – 1), (4, 0), (3, 3) and (–3, 2) are the vertices of a parallelogram. 0 ) 1 2) are the vertices of a parallelogram. 3) and (–3 3% 4 9. Without using distance formula show that points (– 2 October 27, 2021 Category: Chapter [...]
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1 ,
2) are the vertices of a parallelogram. ,
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4 ,
9. Without using distance formula ,
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6. Without using the Pythagoras theorem, show that the points (4, 4), (3, 5) and (–1, –1) are the vertices of a right angled triangle.
27
Oct
6. Without using the Pythagoras theorem, show that the points (4, 4), (3, 5) and (–1, –1) are the vertices of a right angled triangle. –1) are the vertices of a right angled triangle. 3% 4 5) and (–1 6. Without using the Pythagoras theorem show that the points (4 October 27, 2021 Category: Chapter [...]