Cho bieu thuc A = 3/n-2
a) Tim cac so nguyen n de bieu thuc A la phan so
b) Tim cac so nguyen n de A la mot so nguyen
Cac giup minh nhe minh dang can gap.
cho A=n-1/n-4
tim n nguyen de A la mot phan so
tim n nguyen de n la mot so nguyen
Cho A= n-1/n+4
a) Tim n nguyen de A la mot phan so
b) Tim n nguyen de A la mot so nguyen
cho A=n-1/n+4
a) tim n nguyen de A la mot phan so
b) tim n nguyen de A la mot so nguyen
bai 1:tim so nguyen x sao cho gia cua cac phan so la so nguyen
a)x+3/x-2
b)x2+3x-2/x+2
chu y:dau / la dau chia trong phan so
bai 2:cho A=2n+1/n-2 voi n la so nguyen
a)tim n de a la phan so
b)tim n de A nguyen
c)tinh gia tri cua A biet:n=2;1;-2;-1
giup minh voi minh dang can.Ai dung minh tick cho
Cho A=\(\frac{n-1}{n+4}\)
a tim n nguyen de A la mot phan so
b tim n gnuyen de A la mot so nguyen
Cho A = n-1/n+4
a,tim n de A la so nguyen to
b,tim n nguyen de A la mot so nguyen
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
tim so nguyen to n de n/74 la phan so toi gian. cac ban gup minh nhe