Tim n de phan so sau co gia tri nguyen va tinh gia tri do:
A=3n+9/n-4
tim so nguyen n de phan so sau co gia tri la so nguyen
A=\(\frac{6n+5}{2n-1}\)
tim cac so nguyen n de\(\frac{3n-1}{n-1}\) co gia tri la so nguyen
Cho Bt : n-3/n-5
a,Tinh gia tri cua A biet n = 6
b,So nguyen n phai co dieu kien gi de A la phan so ?
c, Tim n de A nhan gia tri nguyen
TIm x thuoc Z de cac ps sau co gia tri la so nguyen :
D = \(\frac{2x-3}{x-1}\)
TIm x thuoc Z de cac ps sau co gia tri la so nguyen :
D = \(\frac{2x-3}{x-1}\)
tap hop cac so nguyen n de \(\frac{n}{n+3}\)co gia tri la so nguyen la S = {...}
Tim cac gia tri nguyen cua x de cac gia tri bieu thuc sau la so nguyen
a, 9-2x/x-3
b,3x-5/x-2
c,-3/4-x
tim cac gia tri nguyen cua x de cac gia tri bieu thuc sau la so nguyen
a,9-2x/x-3
b,3x-5/x-2
c,-3/4-x