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Byju's Answer
Standard XII
Mathematics
Rectangular Hyperbola
Tangents are ...
Question
Tangents are drawn from the point (h,k) to the circle
x
2
+
y
2
=
a
2
; Find the equation of chord of contact ?
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Solution
Equation of chord of contact
S
1
=
0
⇒
x
x
1
+
y
y
1
−
a
2
=
0
⇒
h
x
+
k
y
=
a
2
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Similar questions
Q.
If the chord of contact of tangents drawn from a point on the circle
x
2
+
y
2
=
a
2
to the circle
x
2
+
y
2
=
b
2
touches the circle
x
2
+
y
2
=
c
2
, then a, b,c are in
.