Question

The centre of a set of circles, each of radius 3, lie on

x² + y² = 25 . The locus of any point in the set is

• A. 4 £ x² + y²£ 64
• B. 3 £ x² + y²£ 9
• C. x² + y²³ 25
• D. None of these

Answer 1

Answer: (A)

4 £ x² + y²£ 64

Answer 2

Point P will lie between concentric circle

x² +y² = 4 and x² + y ² = 64. The locus of P will be

4 £ x² + y² £ 64