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Byju's Answer
Standard XII
Mathematics
Angle between Two Planes
find the deri...
Question
find the derivative of sec(x+y)=xy wrt x
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Solution
Dear Student
We are given an equation :
sec
x
+
y
=
xy
Differentiate
with
respect
to
x
both
the
sides
,
applying
chain
rule
sec
x
+
y
tan
x
+
y
1
+
dy
dx
=
x
dy
dx
+
y
Simplify
the
above
equation
,
take
common
dy
dx
on
left
hand
side
and
rest
of
the
things
on
the
other
side
.
⇒
x
-
tan
x
+
y
sec
x
+
y
dy
dx
=
tan
x
+
y
sec
x
+
y
-
y
⇒
dy
dx
=
tan
x
+
y
sec
x
+
y
-
y
x
-
tan
x
+
y
sec
x
+
y
which
is
the
required
answer
.
Regards
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