x+y = 2015xy =>( x+y}/xy = 2015
1/x + 1/y = ( x+y)/xy = 2010
nghich dao 2 so la 2015
x+y = 2015xy =>( x+y}/xy = 2015
1/x + 1/y = ( x+y)/xy = 2010
nghich dao 2 so la 2015
Cho 2 phan so co tong bang -3 va tich bang 12/5. Tinh tong cac so nghich dao cua 2 phan so do
cho phan so co tong bang -3 va tich bang 12/5 ting tong nghich dao cua 2 phan so do?
1.cho hai phan so co tong bang -3 va tich bang 12/5. tinh tong cac nghich daao cua hai phan so do
2.cho hai phan so toi gian a/b va c/d. biet a/b+c/d E z. chung minh /b/=/d/
cho 2 phan so co tong bang -3 va tich bang 12/5 tinh tong cac so ngich dao cua 2 phan so
Tim 3 phan so biet tong cac nghich dao cua chung la mot so tu nhien?
tim so co 3 chu so biet rang nghich dao cua tong 3 chu so do bang 1 phan 1000 so da cho
tim 2 phan so co tu = 1, cac mau duong, biet rang tong cua 2 phan so ay cong voi tich cua chung = 1/2
tap hop cac so co ba chu so ma tong cua chung bang 6 co so phan tu la
tim 2 phan so biết rang tong cua chung bang tich cua chung