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The length of the latus rectum of the ellipse x² /12 + y² /4 = 1 is
Choice (d) is correct. The given circle is x² + y² + 6x + 2y = 0 ⇒ x² + 6x + 9 + y² + 2y + 1 = 9 + 1 ⇒ (x + 3)² + (y + 1)² = 10 ⇒ {x - ( -3)}² = 10 Thus, the centre of the circle is (-3, -1). This question related to Chapter 10 maths Class 11th NCERT. From the Chapter 10: Conic Section. Give answerRead more
Choice (d) is correct.
The given circle is x² + y² + 6x + 2y = 0 ⇒ x² + 6x + 9 + y² + 2y + 1 = 9 + 1
⇒ (x + 3)² + (y + 1)² = 10 ⇒ {x – ( -3)}² = 10
Thus, the centre of the circle is (-3, -1).
This question related to Chapter 10 maths Class 11th NCERT. From the Chapter 10: Conic Section. Give answer according to your understanding.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-10
The center of the circle (x + 3)² + (y + 1)² – 25 = 0 lies on the line
Choice (a) is correct. The given circle is (x + 3)² + (y + 1)² - 25 = 0 ⇒ [x - (-3)]² + [ y - (-1)]² =(5)² ⇒ (-3, -1) is the centre of the circle. On checking whether (-3, -1) lies on options (a) or (b) or (c) or (d), we find that it lies on 5x + y + 16 = 0 5 (-3) + (-1) + 16 = 0 which is true. ThiRead more
Choice (a) is correct.
The given circle is (x + 3)² + (y + 1)² – 25 = 0
⇒ [x – (-3)]² + [ y – (-1)]² =(5)²
⇒ (-3, -1) is the centre of the circle.
On checking whether (-3, -1) lies on options (a) or (b) or (c) or (d), we find that it lies on 5x + y + 16 = 0
5 (-3) + (-1) + 16 = 0 which is true.
This question related to Chapter 10 maths Class 11th NCERT. From the Chapter 10: Conic Section. Give answer according to your understanding.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-10
The length of semi – latus rectum of the parabola x² = 20y is
Choice (c) is correct. The equation of the parabola is x² = 20y which is of the form x² = 4ay where 4a = 20. Length of semi-latus rectum = 2a = 10. This question related to Chapter 10 maths Class 11th NCERT. From the Chapter 10: Conic Section. Give answer according to your understanding. For more plRead more
Choice (c) is correct.
The equation of the parabola is x² = 20y
which is of the form x² = 4ay where 4a = 20.
Length of semi-latus rectum = 2a = 10.
This question related to Chapter 10 maths Class 11th NCERT. From the Chapter 10: Conic Section. Give answer according to your understanding.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-10
The equation of the circle which touches the x- axis and whose centre is (3, 4) is
Choice (a) is correct. As the coordinates of the centre are (3, 4) and radius = 4 because distance of a point (on x-axis) on a circle from the centre (3, 4) is the y-coordinates i.e., 4 so, the required equation is (x - 3)² + (y - 4)² = 4² This question related to Chapter 10 maths Class 11th NCERT.Read more
Choice (a) is correct.
As the coordinates of the centre are (3, 4) and radius = 4 because distance of a point (on x-axis) on a circle from the centre (3, 4) is the y-coordinates i.e., 4 so, the required equation is (x – 3)² + (y – 4)² = 4²
This question related to Chapter 10 maths Class 11th NCERT. From the Chapter 10: Conic Section. Give answer according to your understanding.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-10
The equation of the directrix of the parabola y² = -8x is
Choice (a) is correct. As the coordinates of the centre are (3, 4) and radius = 4 because distance of a point (on x-axis) on a circle from the centre (3, 4) is the y-coordinates i.e., 4 so, the required equation is (x - 3)² + (y - 4)² = 4² This question related to Chapter 10 maths Class 11th NCERT.Read more
Choice (a) is correct.
As the coordinates of the centre are (3, 4) and radius = 4 because distance of a point (on x-axis) on a circle from the centre (3, 4) is the y-coordinates i.e., 4 so, the required equation is (x – 3)² + (y – 4)² = 4²
This question related to Chapter 10 maths Class 11th NCERT. From the Chapter 10: Conic Section. Give answer according to your understanding.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-10