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NDA Math Area Under the Curves
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© examsnet.com
Question : 25
Total: 27
What is the area of the parabola
y
2
=
4
b
x
bounded by its latus rectum ?
[NDA II 2014]
2
b
2
3
square units
4
b
2
3
square units
b
2
square units
8
b
2
3
square units
Validate
Solution:
Area
2
2
b
∫
0
(
b
−
y
2
4
b
)
d
y
=
2
[
b
y
−
y
3
12
b
]
0
2
b
=
2
×
24
b
3
−
8
b
3
12
b
=
8
b
2
3
© examsnet.com
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