D
donghoqualac_2009


cho ham so:y=(-x+1)/(2x+1) (C)
viet phuong trinh tiep tuyentai M thuoc (C), biet tiep tuyen cat 2 truc toa do thanh 1 tam giac co dien tich bang 1
cac ban giup minh voi, giai chi tiet giup minh nha, minh khong hieu bai giai cua thay giao
viet phuong trinh tiep tuyentai M thuoc (C), biet tiep tuyen cat 2 truc toa do thanh 1 tam giac co dien tich bang 1
cac ban giup minh voi, giai chi tiet giup minh nha, minh khong hieu bai giai cua thay giao