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

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## Chapter 11 - Conic Sections Exercise Ex. 11.1

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 ## Chapter 11 - Conic Sections Exercise Ex. 11.2

Solution 1 Solution 2 Solution 3 Solution 4 Solution 5 Solution 6 Solution 7 Solution 8 Solution 9 Solution 10 Solution 11 Solution 12 ## Chapter 11 - Conic Sections Exercise Ex. 11.3

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 ## Chapter 11 - Conic Sections Exercise Ex. 16.2

Solution 1   ## Chapter 11 - Conic Sections Exercise Misc. Ex.

Solution 1 Solution 2  Solution 3  Solution 4  Solution 5 Solution 6  Solution 7  Solution 8  