viet so 729 duoi dang 1 luy thua voi 3 co so khac nhau ( so mu > 1)
trong cac so sau , so nao la luy thua cua 1 so tu nhien voi so mu lon hon 1 gồm: 8, 10, 16, 64, 125, 144, 1000 (chu y rang nhung so tu nhien co nhieu cach viet duoi dang luy thua?
viet tich 2 nhan 4 nhan 8 nhan 16 nhan 256 duoi dang 1 luy thua voi so mu co so tu nhien nho nhat co the co
A = 2.4.8.256
A = 21.22.23.28
A = 214
A = (214)1
1) Viet cac so 2 mu 27 va 3 mu 18 duoi dang luy thua co so mu la9
trong cac so sau so nao la luy thua cua mot so tu nhien voi so mu lon hon 1
(chu y rang co nhung so nhieu cach viet duoi dang ly thua )
8,16,20,27,60,64,81,90,100?
cácsố cần tìm là 8 (2^3); 16(4^2);27 (3^3);64 (8^2);100 (10^2)
viet cac so 2mu27 va 3mu18 duoi dang cac luy thua co so mu la 9
\(3^2=9\)
nên \(3^{18}=\left(3^2\right)^9=9^9\)
Đáp số: \(9^9\)
viet ket qua cac tich sau duoi dang mot luy thua voi co so la so tu nhien nho nhat co the duoc :
2*4*8*32*64
3*9*27*81*729
+) \(2\times4\times8\times32\times64\)
\(=2\times2^2\times2^3\times2^5\times2^6\)
\(=2^{1+2+3+5+6}\)
\(=2^{17}\)
+) \(3\times9\times27\times81\times729\)
\(=3\times3^2\times3^3\times3^4\times3^6\)
\(=3^{1+2+3+4+6}\)
\(=3^{16}\)
_Chúc bạn học tốt_
trong cac so sau ,so nao la luy thua cua mot so tu nhien voi so mu lon hon { chu y rang co nhung so co nhieu cach viet doi dang luy thua
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
viet thanh dang luy thua voi so mu lon hon 1 cac so sau:
a)121
b)144