Ex 10.1, 2 - Chapter 10 Class 11 Conic Sections

Last updated at April 17, 2024 by

Slide3.JPG

Slide4.JPG

Go Ad-free

Transcript

Ex 10.1, 2 Find the equation of the circle with centre ( 2, 3) and radius 4 We know that equation of a circle is (x h)2 + (y k)2 = r2 Where (h, k) is the centre & r is the radius Here Centre (h, k) = ( 2, 3) So h = 2 & k = 3 & radius (r) = 4. Putting values in (1) (x ( 2))2 + (y 3)2 = (4)2 (x + 2)2 + (y 3)2 = 16 (x2 + 22 + 4x) + (y2 + 32 6y) = 16 x2 + 4 + 4x + y2 + 9 6y = 16 x2 + y2 + 4x 6y + 4 + 9 = 16 x2 + y2 + 4x 6y + 13 16 = 0 x2 + y2 + 4x 6y 3 = 0

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo