CircleHard
Question
If the length of tangent drawn from the point (5,3) to the circle x2 + y2 + 2x + ky + 17 = 0 is 7, then k =
Options
A.− 6
B.− 4
C.4
D.13 / 2
More Circle Questions
The equation of the circle passing through (3, 6) and whose centre is (2, −1) is -...The equation of the circle which touches both the axes and the line + = 1 and lies in the first quadrant is (x _ c)2 + (...For the circles S1 ≡ x2 + y2 - 4x - 6y - 12 = 0 and S2 ≡ x2 + y2 + 6x + 4y - 12 = 0 and the line L ≡ x...The line ax + by + c = 0 is a normal to the circle x2 + y2 = r2. The portion of the line ax+ by + c = 0 intercepted by t...The distance between the chords of contact of the tangents to the circle x2 + y2 + 2gx + 2fy + c = 0 from the origin and...