Cho phan so: P = \(\frac{2n+7}{5n+2}\)(n thuoc Z)
a)Tim n thuoc z de P la phan so chua toi gian.
b)Tim n thuoc Z sao cho P la phan so toi gian.
Cho phan so A=n+10/2n-8 tim so n de A thuoc Z
tim n thuoc z de phan so sau a=4n-1/2n+3 co gia tri nguyen
cho A=n+3\n-2 (n thuoc Z)
a) tim n de A la phan so
b) tim n de A thuoc Z
c) tim n biet A=-4
cho bieu thuc a=2n+2/2n-4 (N thuoc Z)
a) voi gia tri nao cua n de a la phan so
b) tim cac so co gia tri cua n de là so nhuyen
2n+2 phan 2n-4
cho phan so \(B=\frac{4n+1}{2n-3}\)n thuoc z
a, tim n de phan so B toi gian
b, tim n de B dat gia tri nho nhat , gia tri lon nhat va tinh cac gia tri do.
cho phan so A=n+1/n-3 (n thuoc z;n khac 3)
tim n de A co gia tri nguyen
cho phan so :\(\frac{6n-4}{2n+3}\)n thuoc z
a, tim n de A dat gia tri la so nguyen
b,tim n de A dat gia tri lon nhat va tinh gia tri do.
giup mk nhe mn:))
A=2n-1/n+3 Tim n thuoc Z de A thuoc Z
