Chung minh 2 so do la hop so kia ma! Chac la sai rui
gọi hai số nguyên liên tiếp là a ;b=a+1
=>a+(a+1)
=>a+a+1
=2a+1
1)chung to rang so nguyen to p;p>5 khi chia cho 6 chi co the du 1 hoac 5
2)chung minh rang neu p va p+2 la so nguyen to lon hon 3 thi p+1 la mot hop so
cac an giai giup minh minh dang can gap
ai giai nhanh minh tick cho
goi A la tich cac so nguyen lien tiep tu 1 den 1001 va B la tich cac so nguyen lien tiep tu 1006 den 2017 . hoi A+B co chia het cho 2017 ko?
cac ban ghi ca loi giai gia nhe . ai nhanh nhat minh se tick cho
CHUNG MINH RANG 2 SO TU NHIEN LIEN TIEP LA 2 SO NGUYEN TO CUNG NHAU
CO CACH GIAI
AI LAM DUOC MINH TICK
a, Chung minh rang 5m+3 va 3m+2 la 2 so nguyen biet rang 1 so bang 10 ngen to cung nhau voi m la so nguyen to bat ky.
b,Tim 1 bo ba so nguyen to biet rang 1 so bang 10 phan tram tong cua 3 so can tim
Ai lam nhanh nhat minh tick cho
cho n la so nguyen to lon hon 3. hoi n^2 la nguyen to hay hop so. ai lam loi giai va lam dung la duoc tich
cho dap an la hop so nhung phai lam cach lam
chung to rang so nguyen to p;p>5 khi chia cho 6 co the du 1 hoac 5
2)chung minh rang neu p va p+2 la so nguyen to lon hon 3 thi p+1 la mot hop so
1.tinh
C=(1+1/1.3)(1+1/2.4)(1+1/3.5)...(1+1/2014.2016)
2.
a, so 2^100 viet trong he thap phan co bao nhieu chu so
b,Chung to rang neu p la so nguyen to lon hon 3 thi p^2 -1 chia het cho 3
3.
a,tim cac chu so a,b,c khac 0 thoa man
abbc=ab.ac.7
b,cho A=1/2.(7^2012^2014-3^92^94). chung minh A la so tu nhien chia het cho 5.
4.
a,chung minh rang ,neu
(ab+cd+eg) chia het cho 11 thi abcdeg chia het cho 11
b,chung minh rang
10^28+8 chia het cho 72
Cac ban nho ai nhanh mink tick nhung phai co du cach lam va loi giai !!!!!!!!!!!!!!!!!!!!!!!!!
Cho P la so nguyen to lon hon 3 va 5p+1 cung la so nguyen to. Chung minh rang 7p+1 la hop so
a)Tim cap so tu nhien x,y biet (x-2)(y-3)=5
b)Cho p la so nguyen to lon hon 3.Chung minhh rang: (p-1)(p+1) chia het cho 24
c)Tong cua nam so tu nhien lien tiep co tan cung bang chu so nao?(co giai thich)
LAM NHANH GIUP MINH NHA
