1000x(-1000)+a voi a= so co tri tuyet doi ko doi
cho day {aN} gom so nguyen a1,a2,...,aN(3<=N<=10000).so lon nhat co gia tri tuyet doi ko vuot qua 1000
Chung minh: Voi moi a,b thuoc tap hop Z thi gia tri tuyet doi cua a+b < hoac = gia tri tuyet doi cua a + gia tri tuyet doi cua b
tim so nguyen x, biet
a. 7 - x = 8 - ( -7 )
b. x - 8 = ( -3 ) = -8
tim so nguyen a, biet
a. gia tri tuyet doi a gia tri tuyet doi = 2
b. gia tri tuyet doi a + 2 gia tri tuyet doi = 0
a, 7-x=8-(-7)
=> 7-x=15
=> x= 7-15
=> x=-8
b, x-8=-3+(-8)
=> x-8=-11
=> x=-11+8
=> x=-3
Cau 1: So gan dung cua a = 2,57656 co 3 chu so dang tin viet voi dang chuan la?
Cau 2: Trong 4 lan can hoa chat, ta thu duoc ket qua voi do chinh xac 0,001g : 5,382g : 5,384g : 5,386g. Sai so tuyet doi va chu so chac (viet theo thu tu tuong ung) cua ket qua nay la?
Cau 3: Cho gia tri gan dung cua 8/17 la 0,47. Sai so tuyet doi cua 0,47 la?
Cau 4: Cho gia tri gan dung cua 3/7 la 0,429. Sai so tuyet doi cua 0,429 la?
Cau 5: Qua dieu tra, so dan o tinh B la 2.731.425 nguoi voi sai so uoc luong ko qua 200 nguoi. Cac chu so ko dang tin la hang nao?
Giup voi minh can sieu gap luon! Cam on moi nguoi nhieu nhieu
bai 1 so cac gia tri nguyen cua x de gia tri tuyet doi cua x + gia tri tuyet doi cua x-2 =0
bai 2 so cac gia tri nguyen cua x thoa man gia tri tuyet doi cua x-3 + gia tri tuyet doi cua 8-2x = 1 là
Cho A = X 36^x - 5^m I. Tim so co gia tri tuyet doi nhat ?
cho a va b la hai so nguyen khac dau. khi do gia tri tuyet doi cua a nhan gia tri tuyet doi cua b = k.a.b. vay k =?
Số các giá trị cua x thoa mãn : tri tuyet doi cua x-5/tri tuyet doi cua x-3=tri tuyet doi cua x-1/tri tuyet doi cua x-3
cho4 so ko am a,b;c;d thoa man a+b+c+d=1 . Goi S la tong cac tri tuyet doi cua hieu tung cap so co duoc tu 4 so nay. S co the dat gia tri lon nhat la bao nhieu ?
xin loi cac ban vi cau hoi cua minh ko co dau nen hoi kho hieu mong cac ban giup do nha thankyou
S lon nhat bang 3 khi trong 4 so a,b, cd co 1 so bang 1con 3 so bang