\(\frac{3}{-4}=\frac{3\cdot\left(-1\right)}{-4\cdot\left(-1\right)}=\frac{-3}{4}\)
\(\frac{-2}{-5}=\frac{-2\cdot\left(-1\right)}{-5\cdot\left(-1\right)}=\frac{2}{5}\)
\(\frac{-17}{a-3}\)Để có mẫu dương \(a-3>0\)=> \(a>3\)
\(\frac{6}{-a^2-1}\)Ta có \(a^2\ge0\forall a\)=> \(-a^2\le0\forall a\)=> \(-a^2-1\le0\forall a\)=> Không có a thỏa mãn đề bài
viet cac phan so sau duoi dang hon so duong\(\frac{3}{2}\)\(\frac{100}{17}\)\(\frac{15}{4}\)\(\frac{240}{3}\)
Minh dang can gap cac ban tra loi nhanh nhed
phan so 6/35 co the viet duoi dang tich cua hai phan so co tu va mau la cac so nguyen duong co mot chu so
tinh va viet ket qua duoi dang phan so va hon so
A =\(5+\frac{1}{1-\frac{1}{4+\frac{1}{3-\frac{1}{8+\frac{1}{2-\frac{1}{7}}}}}}\)
viet cac phan so sau co dang mau la 24: -3/8, 2/-3, -3/-4, 3/-72, 5/-6
co bao nhieu\(\frac{a}{b}\) bang phan so \(\frac{45}{65}\) co tu va mau la cac so duong co 3 chu so
1. Cho bieu thuc A=\(\frac{-4}{n-1}\)(voi n\(\in\)Z)
a. So nguyen n phai co dieu Kien gi de A la Phan so
b. Tin cac so nguyen n de A co gia tri nguyen
2. Cho Phan so B= \(\frac{n}{n-4}\)(voi n\(\in\)Z)
a. Tim cac so Nguyen n de B la phan so
b. Tim tat ca cac so nguyen n de B co gia tri nguyen
3. Chung minh rang cac Phan so sau Co gia tri la so tu nhien
a. \(\frac{10^{2016}+2}{3}\)
b.\(\frac{10^{2016}+8}{9}\)
Viet tap hop A gom cac phan so bang \(\frac{15}{48}\)ma mau co 2 chu so.
tim cac phan so toi gian biet tich cua tu va mau la 220 va phan so co the viet dc duoi dang so thap phan
trong cac cach viet sau cach viet nao cho ta phan so \(\frac{4}{7};\frac{5}{0};\frac{1,2}{7};\frac{-3}{4};\frac{1}{-5};\frac{2,123}{3,4};\frac{1,2}{7};\frac{-3}{4}\)
