The circles x2+y2=16x^2+y^2=16x2+y2=16 and (x−k)2+y2=9(x-k)^2+y^2=9(x−k)2+y2=9 touch externally.
Find the possible values of kkk.
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Markscheme
1.3.4 Coordinate geometry in the (x, y) plane Questions
8 exam-style questions on WJEC A Level Maths 1.3.4 Coordinate geometry in the (x, y) plane. Each one has a worked solution and a mark scheme showing where the marks go.