NCERT Class XI Mathematics - Conic Sections - Solutions

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Question : 1
Total: 71
centre (0, 2) and radius 2
Solution:  
Here h = 0, k = 2 and r = 2
The equation of circle is, (xh)2+(yk)2 = r2
(x0)2+(y2)2 = (2)2x2+y2 + 4 – 4y = 4
x2+y2 – 4y = 0
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