Mathematics · Coordinate Geometry
A circle C touches the line x = 2y at the point (2, 1) and intersects the circle C1: x2 + y2 + 2y - 5 = 0 at two points P and Q such that PQ is a diameter of C1. Then the diameter of C is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 17√5✓
- 215
- 3√285
- 44√15
Correct answer
7√5
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