find the centre and the radius of the circle 3x²+3y²-5x-6y+4=0
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Answered by
0
Answer:
I don't know the answer sorry
Answered by
1
Step-by-step explanation:
Given equation is 3x
2
+3y
2
−5x−6y+4=0
Divide throughout by 3
⇒x
2
+y
2
−
3
5
x−2y+
3
4
=0
Now comparing above equation with general equation of circle, x
2
+y
2
+2gx+2fy+c=0
Centre of the circle is (−g,−f)=(
6
5
,1)
and radius =
g
2
+f
2
−c
=
36
25
+1−
3
4
=
6
13
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