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Byju's Answer
Standard XII
Mathematics
Implicit Differentiation
Explain how y...
Question
Explain how you differentiate y=cos(x+y) with respect to x.
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Solution
y
=
cos
(
x
+
y
)
Differentiating
w
.
r
.
t
.
x
,
we
have
dy
dx
=
d
dx
cos
(
x
+
y
)
dy
dx
=
-
sin
(
x
+
y
)
.
d
dx
(
x
+
y
)
dy
dx
=
-
sin
(
x
+
y
)
.
(
1
+
dy
dx
)
dy
dx
+
dy
dx
sin
(
x
+
y
)
=
-
sin
(
x
+
y
)
dy
dx
=
-
sin
(
x
+
y
)
1
+
sin
(
x
+
y
)
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