\(\frac{3n+2}{4n-2}\)
\(n=-4\)
Vì \(\frac{3-1+2}{4-1-2}=\frac{4}{1}=4\)
\(\frac{3n+2}{4n-2}\)
\(n=-4\)
Vì \(\frac{3-1+2}{4-1-2}=\frac{4}{1}=4\)
tim n thuoc N de n+3/2n-2 nguyen
tim n thuoc N de A= 21n + 3 / 6n + 4 rut gon duoc
1.Tim n thuoc Z de 2n-1/3n+2 rut gon duoc
2.So sanh: a, A=13579/34567 va B=13580/34569
b, A=35420/35425 va B=25343/25345
3. Tim cac so tu nhien abcd nho nhat sao cho: a/b=5/14 , b/c=21/28 , c/d=6/11
Tim n thuoc Z de phan so sau rut gon duoc:
4n+5/5n+4
Nho ghi cach lam nua nhe
tim stn n de phan so A = 8n + 193 phan 4n+3 sao cho
a) co gia tri stn
b) la phan so toi gian
c) voi gia tri nao cua n trong khoang 150 den 170 thi phan so A rut gon duoc
Tim tat ca cac so tu nhien n > 0 de 4n + 5 / 5n + 4 co the rut gon duoc
Ai lam dung thi tick
tim so nguyen n sao cho 3n+2 chia cho 4n -5 la so tu nhien
Tim so tu nhien n de phan so A = 8n + 193 / 4n + 3 :
c) Voi gia tri nao cua n trong khoang tu 150 den 170 thi phan so A rut gon duoc.
tim n thuoc Z de
a)n+3/n-2 la so nguyen am
b)n+7/3n-1 la so tu nhien
c)3n+2/4n-5 la so tu nhien
d)15/n ; 12/n+2 va 6/2n-5 deu la so nguyen
ai giai duoc,trinh bay day du mik tick cho(mik can gap)