426
Tik cho mk nha...............cảm ơn rất nhiều
426
Tik cho mk nha...............cảm ơn rất nhiều
Cho phan so a/35
a, tim so nguyen to a de a/35 rut gon duoc
b, Tim cac so a biet phan so do la phan so toi gian nho nhat hon 1
bài 1 a)viet tap hop D cac so tu nhien lon hon 11 va nho hon 18 bang 2 cach
tap hop E cac so tu nhien chan khong vuot qua 92
b)cho biet so phan tu cua moi tap hop
bài 2 tim x biet
a)40.x=120
b)(x-99).20=0
c)200-60x=20
d)87.(x-23)=87 e)410:5+x=32.102
abc+defg=mnpq
tim a,b,c,d,e,f,g,m,n,p,q biet a>b>c>d>e>f>g>m>n>p>q voi tat ca cac chu so khac nhau
a, tim cac so nguyen n biet -3 nho hon hoac bang n va nho hon 5.
b, tinh tong cac so nguyen tim duoc o cau a.
1, viet tap hop A cac so tu nhien nho hon 40 la boi cua 6
viet tap hop B cac so tu nhien nho hon 40 la boi cua 9
goi M la giao cua hai tap hop A va B
a) viet cac phan tu cua tap hop M
b)dung ki hieu con de the hien quan he giua tap hop M voi moi tap hop A va B
2. tim giao cua hai tap hop A va B,biet rang:
a) A={cam ; tao ; chanh }
B={cam ; chanh; quyt}
b)A la tap hop cac hoc sinh gioi mon Van cua mot lop,B la tap hop cac hoc sinh gioi mon Toan cua lop do ;
c) A la tap hop cac so chia het cho 5,B la tap hop cac so chia het cho 10
d) A la tap hop cac so chan , B la tap hop cac so le.
a) tim gia tri nho nhat cua bieu thuc : A = | 1-x | + 8
b) tim cac so nguyen x biet 13 la boi cua x - 4
c) tim so nguyen x sao cho ( x + 5 ) chia het cho ( x + 3 )
giup minh voi! minh can gap gap gap.....
tim cac so nguyen a nho nhat sao cho khi nhan a lan luot voi cac phan so 7/12 ,8/15 ,3/10 deu cho ra ket qua la so nguyen
giup minh voi
moi nguoi giup toi voi........cho ket qua thoi nha
1. gia tri x+y+z biet :
lx-5l+ly-4l+lz-4l=0
2.so cac uoc nguyen duong cu 2^6.3^3
3.so cac uoc nguyen duong cua 18
4.so duong thang tao thanh boi 8 biem phan biet doi mot khong thang hang
5.so tu nhien n thoa man 2^n+1:4^2=1024
6.UCLL(12,18,24)
7.so tu nhien n thoa man 2+4+6.......+n=110
8.tim x 576.15:x=540
9.gia tri a+b+c biet
a+b=10,a+c=25,b+c=25
so phan tu cua tap hop A cac so le nho hon 23
dien dung sai
a/tich cua hai so nguyen duong la mot so nguyen duong
b/tich cua hai so nguyen am la mot so nguyen am
c/tich cua 2 so nguyen cung dau luon lon hon moi so do
d/tich cua hai so nguyen khac dau luon nho hon moi so do
e/neu tich hai so nguyen la mot so nguyen duong thi hai so do deu la so nguyen duong
f/neu tich hai so nguyen la mot so nguyen am thi hai so do deu la so nguyen am