cho p la phan so nguyen to lon hon 3
a) tim so du khi p binh phuong cho 3
b) hoi p binh phuong +2015 la so nguyen to hay hop so
cho 2^n +1 la so nguyen to cm 2^n-1 la hop so
cho p la so nguyen to lon hon 3 chung minh rang p^2+2012 la hop so
ae jup minh voi
cho p la so nguyen to >3 . CMR :\(p^2+2012\)la hop so
GIUP MINH NHE .............!!!
B1. Cho f(1)=1008,f(1)+f(2)+...+f(n)=n^2.f(n) f(n)la ham so duong
tinh f(2015)
B2 Cho cac so nguyen to q,p,r,s sao cho cac so sau deu la so nguyen to p^s+s^q,q^s+s^r,r^s+s^p
tim cac so p,q,r,s
B3 co a,b,c duong a mu 3+bmu3=c^3
so sanh a^2015+b^2015 va c^2015
cho a,b,c la cac so nguyen duong co a + b +c chia het cho 2 chung minh P=a2 + b2 + c2 la hop so
tap hop cac gia tri nguyen cua x thoa man (x^2+4x+13) chia het cho x+4 co so phan tu la
tap hop cac so nguyen n de \(\frac{n}{n+3}\)co gia tri la so nguyen la S = {...}
Tap hop so tu nhien a de 2a+5/a+1 la so nguyen duong S={........}