nhung minh khong biet giai hay la ban giai do minh
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tim n thuoc n de cac phan so sau co gia tri nguyen 2n+3/7
tim so nguyen n de phan so 4n+5/2n-1 co gia tri la mot
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cho phan so A= (6n- 1)/3n+2
tim n thuocZ de a co gia tri nguyen
tim n thuoc Z de a co gia tri lon nhat
cho phan so A=n+1/n-3 (n thuoc z;n khac 3)
tim n de A co gia tri nguyen
1)cho phan so A=\(\frac{n+1}{n-2}\)
a tim n thuoc Z de A co gia tri nguyen
b tim n thuoc Z de A co gia tri lon nhat
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 A=n+3/n+2 voi n€z
a)tim dieu kien cua so nguyen n de A la phan so
b)tinh gia tri cua phan so A khi n=1;n=-1
c)tim so nguyen n de phan so A co gia tri la so nguyen
1) Cho bieu thuc : A= 2n +1 /n-3 + 3n-5/ n-3 - 4n-5 /n-3
a)Tim so nguyen n de A nhan gia tri nguyen
b) Tim n de A la phan so toi gian
Cho phan so A = n+1/n-3 (nCZ)
a) Tim cac gia tri cua n de A la phan so
b) Tim n de A co gia tri nguyen