Các câu hỏi tương tự
co the tim duoc hai chu so a va b sao cho phan so \(\frac{a}{b}\) bang so thap phan a,b hay khong ?
tim cac phan so toi gian biet tich cua tu va mau la 220 va phan so co the viet dc duoi dang so thap phan
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
1.a. thay chu so thich hop vao dau *de dc hop so: *27bphan tich cac hop so da tim dc ra thua so ng to c. tim x thuoc N, biet: c1: 327 chia het cho xc2: 327la boi so cua x+12c3: 327 chia het cho (2.x)c. tim a,b thuoc N, ab biet a.b3274. a) tong cua 25 SNT nho hon 100 la so chan hay so le?b) tong cua 2 so NT co the 999 dc ko? vi sao? c) tong cua 2 so NT co the 2007 dc ko? vi sao?d) tong cua 3 so NT 1012. tim so nho nhat ban nao tra loi dung va chi tet minh cho 1 like ne mik noi ne SNT la so ng...
Đọc tiếp
1.a. thay chu so thich hop vao dau *de dc hop so: *27
bphan tich cac hop so da tim dc ra thua so ng to
c. tim x thuoc N, biet:
c1: 327 chia het cho x
c2: 327la boi so cua x+12
c3: 327 chia het cho (2.x)
c. tim a,b thuoc N, a<b biet a.b=327
4. a) tong cua 25 SNT nho hon 100 la so chan hay so le?
b) tong cua 2 so NT co the = 999 dc ko? vi sao?
c) tong cua 2 so NT co the = 2007 dc ko? vi sao?
d) tong cua 3 so NT = 1012. tim so nho nhat
ban nao tra loi dung va chi tet minh cho 1 like
ne mik noi ne SNT la so nguyen to
thoi thi giai dung cau naao cung dc minh cung cho like
voi 2 chu so la ma 1 va 5(so la ma) so la ma lon nhat co the viet dc
(moi chu so co the dung nhieu lan hoac ko dung)
co gia tri tuog ung trog he thap phan la
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.
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
hay cho biet co bao nhieu so thap phan co 2 chu so o phan thap phan ma lon hon24 va nho hon 25
lop 6A co:40 h/s dat 1 diem 10,29 h/s dc 2 diem 10 , 27 h/s dc 3 diem 10,14 h/s dc 4 diem 10,ko co h/s nao dc 5 diem 10.so sanh phan tu cua so diem lop 6A.Dung ki hieu c (tap hop con) de lam.tinh tong so diem cua lop 6A.
Giup minh voi !