co ton tai hay ko so nguyen a,b,c thoa man tat ca cac dieu kien sau abc + a = -625 , abc + b = -633 , abc + c = -597
Tìm tập hop cac so nguyen x thoa man cac dieu kien sau
a)7/2 . 5/12 - 1 < x < 23/3 ÷ 7/3 + 5/7
b)-2240/6 x + 3 ÷5/3 la so nguyen
tim a,b,c nguyen thoa man cac dieu kien sau
a-b=-25
b-c=-21
c-a=-10
minh tick cho ban nao nhanh nhat
Tim cac so tu nhien A,B,C thoa man ca 2 dieu kien 20 nho hon A , nho hon B ,24 lon hon C lon hon B
7. A= 4+3/x -1
a tim dieu kien de a la phan so
B tim dieu kien de a la so nguyen
tim cac so tu nhien a,b thoa man dieu kien \(\frac{11}{17}<\frac{a}{b}<\frac{23}{29}\)va 8b-9a=31
Cho bieu thuc B= 7/ n -7
a) So nguyen n phai co dieu kien gi de B la phan so.
b) Tim phan so B biet n = -7
c) Tim cac so nguyen n de B la so nguyen.
bn nao co loi giai chi tiet bai nay mk se tick,vi mk dung dien thoai ko viet dau dc nen cac ban thong cam nha.
cho 3 so a b c thoa man 3 dieu kien sau a<b<c
tim cac so tu nhien a,b thoa man dieu kien \(\frac{11}{17}\)<\(\frac{A}{B}\)<\(\frac{23}{29}\)