Các câu hỏi tương tự
chung to phan so toi gian voi n thuoc n a , n+1/2n+3 b, 2n +3 /4n +8
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.
Giup to bai nay voi : Chung minh voi n thuoc N sao phan so sau la phan so toi gian 4n+1/6n+1
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 n+8/n-7 voi n thuoc N , n>7
A,tim n de phan so co gia tri guyen
B,tim n de phan so toi gian
Chung minh rang phan so sau toi gian voi moi n thuoc N 2n+1/2n(n+1)
cho bieu thuc :A=2n+1/n-3+3n-5/n-3-4n-5/n-3.a, tim n de a nhan gia tri nguyen .b,tim n de a la phan so toi gian
Tim so tu nhien n de phan so A=\(\frac{2n+1}{n-3}+\frac{3n-5}{n-3}-\frac{4n-5}{n-3}\)
a/Tim n de A nhan gia tri nguyen
b/Tim n de A la phan so toi gian
cho bieu thuc:P= 2n+1/n-3 + 3n-5/n-3 + 4n-5/n-3
a) tim n de P nhan gia tri nguyen
b)tim n de P la phan so toi gian