N
newtons007


giai pt luong giac phai giai cho hoan chinh :
[TEX]cos^3x +sin^3x = 2 - sin^4x[/TEX] giai nhanh nha 2h chán wa ko ai giai ak`
[TEX]cos^3x +sin^3x = 2 - sin^4x[/TEX] giai nhanh nha 2h chán wa ko ai giai ak`
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