so nghich dao hon so 1 va 3/8
la gi vay giup minh voi
dang can gap nha
ai nhanh cho 5 tick luon
tim so nghich dao trong cac so sau
A, 1/3-1/4
B, 2/7×14/5-1
Giup minh voi minh dqng cqn gap
chung minh rang tong cua 1 phan so duong voi so nghich dao cua no ko nho hon 2
Chung minh rang tong cua mot phan so duong voi so nghich daocua no thi khong nho hon 2
giup minh voi bai toan phan so nha
2 phan 15 + 2 phan 35 + 2 phan 63 ....+2 phan 399
10 phan 56 + 10 phan 140 + 10 phan 260 +....+ 10 phan 1400
neu giup dc thanks ca nha
Tim n€Z , biet:
a) n+8/n-5 la so nguyen.
b)n2+1/n-6 la so nguyen.
Giup minh voi minh dang can gap .
Lam chi tiet ho minh nha.
Giup to bai nay voi : Chung minh voi n thuoc N sao phan so sau la phan so toi gian 4n+1/6n+1
tim cac so nguyen a nho nhat sao cho khi nhan a lan luot voi cac phan so 7/12 ,8/15 ,3/10 deu cho ra ket qua la so nguyen
giup minh voi
chung to phan so toi gian voi n thuoc N
a,A=n+1/2n+3
b,B=2x+1/x-3
cac ban giup minh voi