# NCERT Solutions for Class 11-science Maths Chapter 11 - Conic Sections

Page / Exercise

Solution 1
Solution 2

Solution 3

Solution 4
Solution 5

Solution 6
Solution 7
Solution 8
Solution 9

Solution 10
Solution 11
Solution 12

Solution 13
Solution 14
Solution 15

Solution 1
Solution 2
Solution 3
Solution 4
Solution 5
Solution 6
Solution 7
Solution 8
Solution 9
Solution 10
Solution 11
Solution 12

Solution 1
Solution 2
Solution 3
Solution 4
Solution 5
Solution 6
Solution 7
Solution 8
Solution 9
Solution 10
Solution 11
Solution 12
Solution 13
Solution 14
Solution 15
Solution 16
Solution 17
Solution 18

Solution 19
Solution 20

## Chapter 11 - Conic Sections Exercise Ex. 11.4

Solution 1
Solution 2

Solution 3
Solution 4
Solution 5
Solution 6
Solution 7

Solution 8
Solution 9
Solution 10
Solution 11
Solution 12
Solution 13
Solution 14
Solution 15

Vertices (0, ± 3), foci (0, ± 5)

Here, the vertices are on the y-axis.

Since the Vertices are (0, ± 3), a = 3

Since the foci are (0, ± 5), c = 5

We know that a+ b2 = c2

∴ 32 + b2 = 52

∴ b2 = 25 - 9 = 16

Solution 1

Solution 1
Solution 2

Solution 3

Solution 4

Solution 5
Solution 6

Solution 7

Solution 8