3. Find the parametric equations of the circles :
(i) 2x2 + 2y2 - 5x - 7y - 3 = 0
Answers
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Answer:
2x
2
+2y
2
−5x−7y−3=0
x
2
+y
2
−
2
5
x−
2
7
y=
2
3
x
2
−
2
5
x+
16
25
+y
2
−
2
7
y+
16
49
=
2
3
+
16
25
+
16
49
(x−5/4)
2
+(y−7/4)
2
=
2
3
+
16
74
=
16
98
=
8
48
x−5/4=
2
2
7
cosθ y−7/4=
2
2
7
secθ
x=
4
5
+
2
2
7
cosθ y=
4
7
+
2
2
7
sinθ
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