B
banmaixanh123


giup minh giai chi tiet bai nay nhe :
giai bat phuong trinh : log co so x cua 125x nhan voi log binh co so 25 cua x < 1 . co phai log binh co so 25 cua x = log co so 5 cua x khong ? bai nay tuy don gian nhung em lam ma van khong dung ket qua na ?
giai bat phuong trinh : log co so x cua 125x nhan voi log binh co so 25 cua x < 1 . co phai log binh co so 25 cua x = log co so 5 cua x khong ? bai nay tuy don gian nhung em lam ma van khong dung ket qua na ?