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Byju's Answer
Standard XII
Mathematics
Domain and Range of Basic Inverse Trigonometric Functions
Show that ang...
Question
Show that angle between the two asymptotes of a hyperbola
x
2
a
2
−
y
2
b
2
=
1
is
2
tan
−
2
b
a
(or)
2
sec
−
1
(
e
)
.
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Solution
Asymptotes of given hyperbola are :
y
=
±
b
a
x
slope of 1st asymptote b=is
m
1
=
b
a
similarly
m
2
=
−
b
a
Angle between asymptotes =
tan
θ
=
m
1
−
m
2
1
+
m
1
m
2
⇒
tan
θ
=
2
b
a
1
−
b
2
a
2
θ
=
2
tan
−
1
(
b
a
)
or
θ
=
2
sec
−
1
(
e
)
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0
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