Circle And System Of Circles Question 344

Question: The number of tangents that can be drawn from (0, 0) to the circle $ x^{2}+y^{2}+2x+6y-15=0 $ is

[MP PET 1992]

Options:

A) None

B) One

C) Two

D) Infinite

Show Answer

Answer:

Correct Answer: A

Solution:

Since $ S_1<0 $ . Point lies inside the circle,

Hence no tangent can be drawn.