Mathmuni - Mathematics for success

Question 271

Find the condition that the straight line may touch the circle r = 2c cosθ

a) a²b² + 2ac = 1

b) a²b² + 2bc = 1

c) b²c² + 2ac = 1

d) b²+ c² = 1

Your Answer	A B C D		CLEAR
« Previous	Answer: c

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