Các câu hỏi tương tự
Cho minh hoi bai nay. Chi can tra loi 1 cau cung duoc! Tick cho ai tra loi som nhat, day du nhat.
1. Cho so huu ti y=2a-1/-3. Voi gia tri nao cua a thi y la so duong, y la so am, khong phai so duong cung phai so am?
2. Cho so huu ti x=a-5/a (a khac 0). Voi gia tri nao cua a thi x la so nguyen?
3. Cho so huu ti x=a-3/2a (a khac 0). Voi gia tri nao cua a thi x la so nguyen?
cho p la so nguyen to lon hon 3 chung minh rang p^2-1 chia het cho 24
cho 3 so nguyen duong ty le lan luot voi cac so 2;3 va 5 biet hieu cua so lon nhat va so be nhat trong ba so do la 24 so lon nhat trong ba so do la : ............
cho so huu ti \(x=\frac{a-3}{2a}\)(a khac 0) vaoi gt nao cua a thi x la so nguyen
giai nhanh giup minh nha minh dang can rat gap !
Cam on nhieu nha !
Cho truoc diem a va duong thang d di qua diem a ve 2018 duong thang phan biet . goi x la so duong thang vuong goc voi d, y la so duong thang khong vuong goc void trong 2018 duong thang da cho..
Tim gia tri nguyen lon nhat cua x, y
Tim gia tri nguyen nho nhat cua x,y
bai 1 tim cac stn x y z sao cho x+y+zxyzbai 2cmr neu m^2+mn+n^2chia het cho 9 voi m ,n la cac stn thi m,n chia het cho 3bai 3 tim stn n nho nhat de cac phan so sau toi gian7/n+9.8/n+10,...,31/n+33bai 4chung to rang phan so m^3+2m/m^4+3m^2 +1 toi gianbai 5 a,cmr khong ton tai so chinh phuong nao co dang ababb,cho 51 so nguyen duong khong vuot qua 100 cmr ton tai 2 so trong 51 so noi tren ma 1 so chia het cho so con laic,tim cac so co 3 chu so sao cho hieu cua so ay va gom 3 chu so ay viet theo th...
Đọc tiếp
bai 1 tim cac stn x y z sao cho x+y+z=xyz
bai 2cmr neu m^2+mn+n^2chia het cho 9 voi m ,n la cac stn thi m,n chia het cho 3
bai 3 tim stn n nho nhat de cac phan so sau toi gian
7/n+9.8/n+10,...,31/n+33
bai 4chung to rang phan so m^3+2m/m^4+3m^2 +1 toi gian
bai 5 a,cmr khong ton tai so chinh phuong nao co dang abab
b,cho 51 so nguyen duong khong vuot qua 100 cmr ton tai 2 so trong 51 so noi tren ma 1 so chia het cho so con lai
c,tim cac so co 3 chu so sao cho hieu cua so ay va gom 3 chu so ay viet theo thu tu nguoc lai la mot so chinh phuong
bai 6cmr A=2x(x+y-1)+y^2+1 luon nhan gia tri khong am voi moi x,y
bai 7 tim hai so nguyen duong sao cho tong ,hieu thuong (so lon chia cho so nho )cua chung cong lai duoc 38
bai 8 cho ba so a,b,c thoa man a/2009=b/2010=c/2011
tinh gia tri cua bieu thuc M=4(a-b)(b-c)-(c-a)^2
bai 1 : Hoc sinh khoi 6 co 195 nam va 117 nu tham gia lao dong. Thay phu trach muon chia thanh cac to sau cho so nam va nu moi to dieu bang nhau. Hoi co the chia nhieu nhat may to ? Moi to co bao nhieu nam va bao nhieu nu ?bai 2 : Mot doi y te co 24 nguoi bac si va co 208 nguoi y ta. Co the chia doi y te thanh nhieu nhat bao nhieu to ? Moi to co may bac si va may y ta ?bai 3 : Co Lan phu trach doi can chia so trai cay trong do 80 qua cam, 36 qua quyt va 104 qua nam vao cac dia banh keo trung th...
Đọc tiếp
bai 1 : Hoc sinh khoi 6 co 195 nam va 117 nu tham gia lao dong. Thay phu trach muon chia thanh cac to sau cho so nam va nu moi to dieu bang nhau. Hoi co the chia nhieu nhat may to ? Moi to co bao nhieu nam va bao nhieu nu ?
bai 2 : Mot doi y te co 24 nguoi bac si va co 208 nguoi y ta. Co the chia doi y te thanh nhieu nhat bao nhieu to ? Moi to co may bac si va may y ta ?
bai 3 : Co Lan phu trach doi can chia so trai cay trong do 80 qua cam, 36 qua quyt va 104 qua nam vao cac dia banh keo trung thu sao cho so qua mi loai trong cac dia la bang nhau. Hoi co the chia thanh nhieu nhat bao nhieu dia ? khi do moi dia co bao nhieu trai cay moi loai ?
bai 4 : Binh muon cat mot tam bia hinh chu nhat co kich thuoc bang 112 cm va 140 cm. Binh muon cat thanh cac manh nho hinh vuong bang nhau sao cho tam bia duoc cat het khong con manh nao. Tinh do dai canh hinh vuong co so do la so do tu nhien ( don vi do la cm nho hon 20 cm va lon hon 10 cm )
Giai giup minh zoi
tim x thuoc Q biet x la so nguyen lon nhat duoc viet =3chu so 1
tim so nguyen duong a lon nhat sao cho 2004! chia het cho 7a