C
canhdieuvang
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Đề: giải pt
[tex]\huge \frac{1}{Sinx} + \frac{1}{Sin (x-\frac{3\pi}{2})} = 4Sin(\frac{7\pi}{4}-x)[/tex]
Tham khảo :http://diendan.hocmai.vn/announcement.php?f=261&a=108
[tex]\huge \frac{1}{Sinx} + \frac{1}{Sin (x-\frac{3\pi}{2})} = 4Sin(\frac{7\pi}{4}-x)[/tex]
Tham khảo :http://diendan.hocmai.vn/announcement.php?f=261&a=108
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