Các câu hỏi tương tự
9 * 3 mu 3 * 1 phan 81 * 3 mu 2 4 * 2 mu 5 . { 2 mu 3 * 1 phan 16 )cac ban tra loi giup minh nhe ! nho cho ca cach lam thi minh moi hieu dc thank nhieu nha
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1 PHAN 5+|1-3|=[-1 PHAN 2] MU 2
1 PHAN 5+|1-3|=[-1 PHAN 2] MU 2
1 PHAN 5+|1-3|=[-1 PHAN 2] MU 2
GIUP MINH NHA CAM ON BAN NHIEU LAM
(-3phan4) mu 3x - 1=256 phan 81
bai 1: 2-3x=-5x+4
{x-1}mu 4={x-1}mu 40
3x-[2x-{5x+1}]=4
Bai 2:Ban Minh di xe dap tu nha den truong voi van toc 12km/h thi het nua gio. Neu ban di voi van toc 10km/h thi phai mat them bao nhieu thoi gian.
Bai 3: Chia so 1000 thanh 3 phan
Ti so giua phan 1 va phan 2 la 2; phan 2 va phan 3 ti le nghich voi 5 va 6.
cau 1:tinh gia tri bieu thuc
3/4 +1/1/4 *2/2/3-(-1/2)^2:6/5
cho ma co 2 dau/la hon so,con 1 dau la phan so,con ^2 la mu 2
cau 2:tim x biet
( x-1)^5= -32
cho ^5 co nghia la mu 5
4*(-1/2) mu 3 -3*(-1/2) mu 2-3*(-1/2) mu 1
c/m 1/2mu 3 +1/3 mu 3 +..................+1/ 2006 mu 3<1/4
c/m 1/2 mu 3 +1/3 mu 3 +..................+1/2006 mu3 >1/15