1. hinh vuong co do dai canh 6\(\sqrt{2}\) thi do dai duong cheo cua hinh vuong do la ?cm2.cho 2 phan thuc Q=\(\frac{12x^2+20x+3}{6x^2+43x+7}\)va P=\(\frac{8x^2+36x+36}{x^2+10x+21}\)voi tat ca cac gia tri cua x de 2 phan thuc P vaQ xac dinh thi khi do \(\frac{Q}{P}\)= ?3.cho phan thuc A=\(\frac{2x^2+5x+8}{x^2-x+56}\)tap hop cac gia tri cua x de phan tuc A ko xac dinh...
Đọc tiếp
1. hinh vuong co do dai canh 6\(\sqrt{2}\) thi do dai duong cheo cua hinh vuong do la ?cm
2.cho 2 phan thuc Q=\(\frac{12x^2+20x+3}{6x^2+43x+7}\)va P=\(\frac{8x^2+36x+36}{x^2+10x+21}\)voi tat ca cac gia tri cua x de 2 phan thuc P vaQ xac dinh thi khi do \(\frac{Q}{P}\)= ?
3.cho phan thuc A=\(\frac{2x^2+5x+8}{x^2-x+56}\)tap hop cac gia tri cua x de phan tuc A ko xac dinh la
