SELECT * FROM question_mgmt as q WHERE id=1199 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=2 AND subId=6 AND chapterId=82 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 11th mathematics Conic Secrtions find the equation of the circle with centre 0 2

Question:

Find the equation of the circle with centre (0, 2) and radius 2

Answer:

The equation of a circle with centre (h, k) and radius r is given as

(x­ – h)2 + (y ­– k)2 = r2

It is given that centre (h, k) = (0, 2) and radius (r) = 2.

Therefore, the equation of the circle is

(x – 0)2 + (y – 2)2 = 22

x2 + y2 + 4 ­– 4 y = 4

x2 + y2 ­– 4y = 0


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