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cuizixuan
LV 9
@
2025-4-1 11:24:20
r
=
2
−
∣
sin
(
3
4
θ
)
∣
r=2-\left|\sin(\frac{3}{4}\theta)\right|
r
=
2
−
sin
(
4
3
θ
)
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cuizixuan
LV 9
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