34.16+17.12.2+17.11.4
= 17.2.16+17.12.2+17.11.4
= 17.(2+16+12+2+11+4)
= 17.47
= 799
34.16+17.12.2+17.11.4
= 17.2.16+17.12.2+17.11.4
= 17.(2+16+12+2+11+4)
= 17.47
= 799
( - 526 ) - ( - 245 ) + 52 - ( 245 - 256 )
Tinh nhanh
Minh can loi giai chi tiet ko can khi dap an
ok
ai co cach giai hay nhat thi minh se chon
c ) 37 ( 24 - 77 ) - 24 ( 37 -77 ) =
d ) (-48) (12-85) - 12 (85 - 48)=
e ) 17. 15 - 34 . 42 + 19 . 17 =
SOS =( em can loi giai chi tiet a !
4 nguoi cong nhan lap rap dc 200 chiec may . Trong do ,nguoi thu 1 lap dc 1/4tong chi tiet may .Nguoi thu 2 lap dc 0,4 lan tong chi tiet may.so chi tiet may nguoi thu 3 lap dc bng 50% so chi tiec may nguoi tu 2 lap dc .Tinh so chi tiet may nguoi thu 4 lap dc
Giup gium minh nha ,tks cac ban!!!
Nho ghi ra cach giai nha !!!
Viet tap hop A cac so chan tu nhien lien tiep lon hon 48 va khong vuot qua 178 bang cach chi ra tinh chat dac trung cho cac phan tu cua tap hop.Tinh so phan tu cua A.
nhanh gium nha minh can gap cam on nhieu
tinh gia tri bieu thuc:
1+[-3]+5+[-7]+...+97+[-99]+101
[GIAI CHI TIET HO MINH NHA DANG CAN GAP MINH CAM ON NHIEU ]
Khong dung may tinh bo tui .Rut gon roi quy dong cac phan so sau
a)\(\frac{17}{20},\frac{13}{15}va\frac{41}{60}\)
b)\(\frac{25}{75},\frac{17}{34}va\frac{121}{132}\)
Tinh nhanh
1-2-3-4+5-6-7-8+9-10-11-12+...+97-98-99-100 ban nao tra loi nhanh va co dap an loi giai thi minh tich nha
tinh bang cach thuan tien
p=3/2-5/6+7/12-9/20+11/30-13/42+15/56-17/72
ai giai tui tich
tinh tong tat ca cac so tu nhien co 2 chu so khong chia het cho 5 va khong chia het cho 9
can gap
ai nhanh mik tick:3
