Đề phân số `(n+9)/(n-6)` có giá trị nguyên
`=>n+9 vdots n-6`
`=>n+9-n+6 vdots n-6`
`=>15 vdots n-6`
`=>n-6 in Ư(15)`
`=>n-6 in {1;3;5;15;-1;-3;-15}`
`=>n in {7;9;11;21;5;3;-9}`
Cho cac bieu thuc
A=n+6 phan n-5 va B=3n-9 phan n-6
a/ Tim gia tri nguyen cua n de A, B la phan so ?
b/ Tim gia tri nguyen cua n de A, B co gia tri nguyen?
c/ Tim gia tri nguyen cua n de A, B co gia tri nguyen lon nhat?
tìm các giá trị nguyen cua n de phan so b= 2n+5\n+3 co gia tri la so nguyen
tim cac so tu nhien n sao cho cac phan so sau co gia tri la so nguyenn - 2
n - 2
4
tim cac so nguyen n de cac phan so sau co gia tri la mot so nguyen
n-5/n-3
Cho phan so: n+9/n-6 ( n thuoc z,n>6). Tim cac gia tri n de phan so co gia tri la nguyen duong.
Tra loi giup minh gap mai nop bai roi. Thanks
tim n thuoc n de cac phan so sau co gia tri nguyen 2n+3/7
tim de bieu thuc sau co gia tri nguyen a=n+1/n-3
Tìm tất cả cac số nguyên n để
\(\frac{n+1}{n-2}\)\(\frac{n+1}{n-2}\) co gia tri la mot so nguyen
tim n thuoc N sao cho cac p/so sau co gia tri la so nguyen:
n-1/8
tim n thuoc z de phan so sau a=4n-1/2n+3 co gia tri nguyen
