find the area of loop of the curve x^4 -2axy+a^2y^2=0
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Answer:
4y 2=x
2
(4−x 2 )
⇒y=± 21
x
2
(4−x
2
)
⇒y=±
2
x
(4−x
2
)
Therefore, Area(A)=4×∫
0
2
2
x
4−x
2
dx
Let 4−x
2
=t⇒−2xdx=dt
⇒A=∫
0
4
t
dt=[
3/2
t
3/2
]
0
4
⇒A=
3
2
64
⇒A=
3
16
sq.units
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