NCERT Class XI Mathematics - Conic Sections - Solutions

Question : 1

Total: 71

centre (0, 2) and radius 2

Solution:

Here h = 0, k = 2 and r = 2
The equation of circle is, (x–h)2+(y–k)2 = r2
∴ (x–0)2+(y–2)2 = (2)2 ⇒ x2+y2 + 4 – 4y = 4
⇒ x2+y2 – 4y = 0

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