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The radical centre of the circles xsquare+ysquare=1 and xsquare +ysquare-2x-4=0 and xsquare+ysquare-3y-3=0 is_

Nishitha , 5 Years ago
Grade 12
anser 1 Answers
Arun

Last Activity: 5 Years ago

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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