Home › AP EAPCET (Engineering) › Mathematics › Circle › If tangents from P are perpendicular, what is th…
If tangents from P are perpendicular, what is the product of their slopes m₁m₂?
A1
B0
C−1
D2
Answer & Solution
Correct answer: C. −1
Slopes of perpendicular lines multiply to −1.
Related questions
Which chord of a circle is the longest possible one?A line meets a radius at right angles at its end on the circle. What is this line?Two chords of a circle are equal. What is true of their distances from the centre?The circle (x - 3)^2 + (y - 4)^2 = 25 passes through which point?A circle is the locus of points in a plane that areA plane cuts a double cone at right angles to its axis. The section is aTo construct a circle on a given diameter, its centre is taken at the diameter'sThe centre of the circle through three non-collinear points is where these lines meet