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Mathematics
Mathematics
Problem
Find the distance between the points
(
a
cos
α
,
a
sin
α
)
(a \cos \alpha, a \sin \alpha)
(
a
cos
α
,
a
sin
α
)
and
(
a
cos
β
,
a
sin
β
)
(a \cos \beta, a \sin \beta)
(
a
cos
β
,
a
sin
β
)
, where
a
>
0
a > 0
a
>
0
.
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