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teaandfunfun
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y=ax^2+b_楕円の残像
Activity
teaandfunfun
y=ax^2+b_速度変え
Activity
teaandfunfun
y=ax^2+bの残像
Activity
teaandfunfun
(x^2+1)(y^2+1)
Activity
teaandfunfun
