tong hai so tu nhien a, b thoa man (a+1)^2 + (b-2)^2 = 4.
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 )
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 m va n la 2 so tu nhien va p la mot so nghuyen thoa man 7/m-1=m+n/p
c/m p 2 =n+2
cho m va n la 2 so tu nhien va p la mot so nghuyen thoa man 7/m-1=m+n/p
c/m p 2 =n+2
cho 4 so ko am a.b.c.d thoa man a+b+c+d=1.goi S la tong cac gia tri truyen doi cua hieu tung cap so co duoc tu 4 so nay..S co the dat duoc gia tri lon nhat bang bao nhieu
Tim so tu nhien n thoa man \(\frac{n+3}{n^2-9}\)la so tu nhien.
Giai cu the ra cho minh nhe!!!
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