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Byju's Answer
Standard XII
Mathematics
Equation of Normal at a Point (x,y) in Terms of f'(x)
Find the area...
Question
Find the area bounded by the y-axis and the curve
x =
e
y
sin
π
y,
y = 0,
y = 1
.
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Solution
∫
1
0
e
y
sin
(
π
y
)
d
y
apply integration by parts:
u
=
e
y
,
v
′
=
sin
(
π
y
)
=
e
+
1
π
−
∫
1
0
−
1
π
e
y
cos
(
π
y
)
d
y
=
e
+
1
π
−
(
−
1
π
⋅
∫
1
0
e
y
cos
(
π
y
)
d
y
)
apply integration by parts:
u
=
e
y
,
v
′
=
cos
(
π
y
)
=
e
+
1
π
−
(
−
1
π
(
0
−
∫
1
0
e
y
1
π
sin
(
π
y
)
d
y
)
)
=
e
+
1
π
−
(
−
1
π
(
0
−
1
π
⋅
∫
1
0
e
y
sin
(
π
y
)
d
y
)
)
∫
1
0
e
y
sin
(
π
y
)
d
y
=
e
+
1
π
−
(
−
1
π
(
0
−
1
π
⋅
∫
1
0
e
y
sin
(
π
y
)
d
y
)
)
=
π
e
+
π
π
2
+
1
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Standard XII Mathematics
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