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Byju's Answer
Standard XII
Mathematics
Area between x=g(y) and y Axis
The area encl...
Question
The area enclosed between the curve
x
2
−
3
x
−
y
=
0
and the line
y
=
x
, is
A
16
3
sq. units
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B
8
3
sq. units
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C
22
3
sq. units
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D
32
3
sq. units
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Solution
The correct option is
A
16
3
sq. units
y
=
x
...(1)
y
=
x
2
−
3
x
...(2)
Equating (1) and (2)
x
=
x
2
−
3
x
⇒
x
=
4
Area
=
∫
4
0
[
(
x
2
−
3
x
)
+
x
]
d
x
=
[
x
3
3
−
3
2
x
2
+
x
2
2
]
4
0
=
64
3
−
16
=
16
3
sq. units
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0
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Q.
The area of the region bounded by the curve x = 2y + 3, y-axis and the line y = 1 and y = -1 is
(a) 4 sq. units (b)
3
2
sq. units (c) 6 sq. units (d) 8 sq. units