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Problem
Problem
The equation of the tangents to the curve
(
1
+
x
3
)
y
=
1
(1+x^3)y = 1
(
1
+
x
3
)
y
=
1
at the points of its intersection with the curve
(
x
+
1
)
y
=
1
(x+1)y = 1
(
x
+
1
)
y
=
1
, is given by a.
x
+
y
=
1
,
y
=
1
x + y = 1, y = 1
x
+
y
=
1
,
y
=
1
b.
x
+
2
y
=
2
,
y
=
1
x + 2y = 2, y = 1
x
+
2
y
=
2
,
y
=
1
c.
x
−
y
=
1
,
y
=
1
x - y = 1, y = 1
x
−
y
=
1
,
y
=
1
d. None of these
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