tong hai so tu nhien a,b thoa man: (a+1)^2 + (b-2)^2 = 4 la? jup mik
tim cap so tu nhien a , b thoa man:
\(3^a=9^{b-1}va8^b=2^{a+8}\)
tim cap so tu nhien (a, b )thoa man :
\(3^a=3^{n+1}va8^h=2^{a+8}\)
cho 4 so tu nhien a b c d thoa man b+c+d/a=a+c+d/b=d+a+b/c=a+b+c/d=k Tim k
cau 1 ,cho m,n thuoc n va p la so nguyen to thoa man p/m-1=m+n/p
CMRp^2=n+2
cau 2,cho a,b,c thoa man a+b+c=0 CMRab+bc+ca be hon hoac bang 0
cau 3,bay gio la 4 gio 10 phut hoi sau it nhat bao lau thi hai kim dong ho nam doi dien nhau tren mot duong thang
cau 4,so 2^100 viet trong he thap phan tao thanh 1 so hoi so do co bao nhieu chu so
cau 5,cho a,b,c la so do 3 canh cua mot tam giac vuong voi c la so do canh huyen CMRa^2n+b^2n be hon hoac bang c^2n (n la so tu nhien lon hon 0 )
cho hai so tu nhien x va y thoa man 2^x+1*3^y=12^x khi do x+y=
ai giup dau tien cho 2 like
tim so tu nhien n thoa man de 2^n-1 chia het cho 259
Cho hai so tu nhien x va y thoa man 2x+1.3y=12x
khi do x+y= ?
1/tong cac gia tri nguyen cua x thoa man /x-0,2/<13
2/ti so gia A va B biet 2/7 cua A gap 4/9 lan 3/10 cua B