2015 duoc viet duoi dang hieu cua hai so chinh phuong nao? Hay neu ro cac cap so
Chung Minh moi so Nguyen le deu Viet duoc duoi dang hieu 2 so chinh phuong
a/ Hieu cac binh phuong cua 2 so tu nhien chan lientiep la 8 . tim hai so ay
b/ tong cac binh phuong cua 2 so tu nhien le lien tiep laf 2594. tim hai so ay
c/ chung minh rang so 3599 duoc viet duoi dang tich cua 2 so tu nhien khac 1
1. Cho a,b,c,d la cac so nguyen thoa man \(a^2=b^2+c^2+d^2\)
chung minh rang a.b.c.d + 2015 viet duoc duoi dang hieu cua 2 so chinh phuong.
2. Cho a,b la cac so duong thoa man dieu kien a+b=1. tim gia tri nho nhat cua bieu thuc
\(P=\frac{2+a}{\sqrt{2-a}}+\frac{2+b}{\sqrt{2-b}}\)
tim 1 so tu nhien o giua 70 va 80 biet rang so do vua co the viet duoc duoi dang tong cua hai so tu nhien lien tiep vua viet duoc duoi dang tong 3 so tu nhien lien tiep cac ban nho co loi giai chi tiet nhe
75 nha thử các số thôi chứ không giải chi tiết được đâu
tim so tn co 2 chu so biet hieu cac binh phuong cua so do va so viet boi 2 cs cua so do nhung theo hung nguoc lai la so chinh phuong
a phan so 5/8 duoc viet duoi dang ti so phan tram la ..................
hieu cua 2 so la 27 so thu nhat bang 2/3 so thu hai so thu nhat la.....................
a ) 62,5 %
cach lam : \(\frac{5}{8}=?\%\)
\(=>\frac{5}{8}=\frac{?}{100}\)
\(=>?=\frac{100\times5}{8}\)
\(=>?=\frac{500}{8}=62,5\)
vay : 5/8 = 62,5 %
b) hieu so phan cua hai so la :
3 -2 = 1 ( phan )
so thu nhat la :
27 : 1 x 2 = 54
so thu hai la :
54 + 27 = 81
dap so : so thu nhat 54
so thu hai 81
Cho cac so thap phan vo han tuan hoan duoc viet duoi dang chu ki sau: 0,(35); 1,235; 1,2(51)
Hay viet chung duoi dang phan so.
\(0,\left(35\right)=\frac{35}{99}.\)
\(1,235=\frac{247}{200}.\)
\(1,2\left(51\right)=\frac{413}{330}.\)
Chúc bạn học tốt!
viet cac so sau duoi dang luy thua cua 1 so tu nhien lon hon 1 viet nhieu cach neu co the la 9;16;27;81;64;625;10000
9=32 ; 16=42=24 ; 27=33 ; 81=92=34 ; 64=82=43=26 ; 625=252=54 ; 10000=1002=104
Can bac hai cua 64 co the viet duoi dang nhu sau: \(\sqrt{64}\)= 6+\(\sqrt{4}\)
Hoi co ton tai hay khong cac so co 2 chu so co the viet can bac hai cua chung duoi dang nhu tren va la mot so nguyen? Hay chi ra toan bo cac so do.