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Mathematics
Mathematics
Problem
If the line
3
x
−
4
y
+
λ
=
0
,
(
λ
>
0
)
3x - 4y + \lambda = 0, (\lambda > 0)
3
x
−
4
y
+
λ
=
0
,
(
λ
>
0
)
touches the circle
x
2
+
y
2
−
4
x
−
8
y
−
5
=
0
x^2 + y^2 - 4x - 8y - 5 = 0
x
2
+
y
2
−
4
x
−
8
y
−
5
=
0
at
(
a
,
b
)
(a, b)
(
a
,
b
)
, then
λ
+
a
+
b
\lambda + a + b
λ
+
a
+
b
is equal to a.
−
22
-22
−
22
b.
−
20
-20
−
20
c.
20
20
20
d.
22
22
22
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