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?
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=\(11^2\)
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