viet moi so sau voi dang so luy thua 81/125 va -8/27 xin cam on
viet cac so sau duoi dang luy thua cua 1 so:
\(a)-\frac{8}{27}\)
\(b)\frac{81}{625}\)
viet cac tich sau duoi dang luy thua cua 1 so:
\(a)27.81\)
\(b)\frac{2}{5}.\frac{8}{125}.\frac{16}{625}\)
1.
a) \(-\frac{8}{27}=-\left(\frac{2}{3}\right)^3\)
b) \(\frac{81}{625}=\left(\frac{3}{5}\right)^4\)
2.
a) 27.81=2187=37
b) sai đề
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?
\(2^3\)
\(4^2\)
\(4^3\)
\(5^3\)
\(10^3\)
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_
Viet dang luy thua voi mu so lon hon 1 cac so sau day:
121
144
169
27
125
Ai nhanh mình tik cho
121 = 112
144 = 122
169 = 132
27 = 33
125 = 53
121=\(11^2\)
144=\(12^2\)
169=\(13^2\)
27=\(3^3\)
125=\(5^3\)
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
1) Viet cac so 2 mu 27 va 3 mu 18 duoi dang luy thua co so mu la9
viet moi so sau duoi dang luy thua cua 10
10 000; 1 00...0 9 chu so
10 000 = 104
100...0 = 109
9 chữ số 0
\(10000=10^4\)
\(100...0=10^8\)(tổng 9 chữ số nên có 8 chữ số 0)
Viet cac so (0,25)^8 va (0,125)^4 duoi dang cac luy thua cua co so 0 ,5
phat bieu va viet dang hai luy thua cung co so chia 2 luy thua cung co so