## 1. Standard Equation of Circle.

2. General Equation of Circle.

3. Condition to Represent Circle.

4. Equation of Circle.

5. Notation.

6. Tangents.

7. Condition of Tangency.

8. Length of Tangent.

9. Chord with middle Point.

10. Chord of Contact.

11. Polar.

12. The angle of intersection θ of two circles.

13. The equation of radical axis of circles.

14. Circle through the intersection of a given circle.

15. The equation of circle through the intersection of two given circles.

16. The equation of a sysrem of coaxal circle.

17. The limiting points of the system of circles.

18. Equation of transformation when origin is shifted to………

19. Equation of transformation , when origin remains unchanged and axes are rotated through an angle θ.

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