C
cockanh


Giai pt:
[TEX]cos^3x+2\sqrt{2}sin^5x=(2+3\sqrt{2})cosxsin^3x[/TEX]
chú ý tex+tiêu đề
[TEX]cos^3x+2\sqrt{2}sin^5x=(2+3\sqrt{2})cosxsin^3x[/TEX]
chú ý tex+tiêu đề
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