A-Level MathematicsYear 2015Q5
MARKS Page six 5. Circle C1 has equation x2 + y2 + 6x + 10y + 9 = 0. The centre of circle C2 is (9, 11). Circles C1 and C2 touch externally. (a) Determine the radius of C2. A third circle, C3, is drawn such that: • both C1 and C2 touch C3 internally • the centres of C1, C2 and C3 are collinear. (b) Determine the equation of C3. 4 4 C1 C2
Paper Source:NH_Mathematics_all_2015.pdf
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Exam Specification Info
This question is part of the UK A-Level Mathematics syllabus. In the actual exam, structured questions typically require linking specific keywords to gain full marks. Applaa helps you drill these topics.
Syllabus levelAdvanced Level (A-Level)
SubjectMathematics
Official MarksVariable (2–6 marks)