Grade 12Algebra
The radical centre of the circles xsquare+ysquare=1 and xsquare +ysquare-2x-4=0 and xsquare+ysquare-3y-3=0 is_
The radical centre of the circles xsquare+ysquare=1 and xsquare +ysquare-2x-4=0 and xsquare+ysquare-3y-3=0 is_
1 Answer
Arun
Dear student
radical axis :
S1 – S2 = 0
-1 + 2x + 4 = 0
x = – 3/2
now S1 – S3 = 0
- 1 + 3y + 3 = 0
y = – 2/3
hence radical centre : ( – 3/2, – 2/3)
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algebra
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