1. viet duoi dang luy thua
a,76:72
b.162:42
c,252:52
d,32:93
viet ket qua cac phep tinh sau duoi dang luy thua 329:64
\(32^9:64=\left(2^5\right)^9:2^6=2^{45}:2^6=2^{45-6}=2^{39}\)
329:64
= (25)9:26
= 245:26
= 245-6
= 239
viet cac tich sau duoi dang luy 1 luy thua
82.324=?
273.94.243=?
\(8^2.32^4=\left(2^3\right)^2.\left(2^5\right)^4=2^6.2^{20}=2^{26}\)
273.94.243\(=\left(3^3\right)^3.\left(3^2\right)^4.\left(3.2^3\right)^3=3^9.3^8.3^3.2^9=3^{20}.2^9\)
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
Viet x mu 10 duoi dang
a tich cua 2 luy thua trong do so bi chia la x mu 7
b luy thua cua x mu 2
c thuong cua 2 luy thua trong doso bi chia la x mu 12
a, x10 = x7.x3
b, x10 = (x2)5
c, x10 = x12 : x2
có góp í đề bài phần a là : tích thì k có số bị chia :))
Viet cac tich sau duoi dang 1 luy thua
2.2.2.3.3.6^2.3
\(\left(2\cdot2\cdot2\cdot3\cdot3\cdot6\right)^{2\cdot3}\)
\(=432^6\)
hok tốt
2.2.2.3.3.6^2 . 3 = 23 . 32 . 36 . 3
= 23 . 32 . 22 . 32 . 3
= 24 . 35
viet cac so sau duoi dang luy thua :4.4.4.4.4.4.4.4.4
4 . 4 . 4 . 4 . 4 . 4 . 4 . 4 . 4 = 4^9
k mình nhé
VIET CAC SO SAU DUOI DANG LUY THUA:10000000;60;200;300
10000000=107
60=22.3.5
200=23.52
300=22.3.52
k mình zới!!!
10 000 000 = 10 7 Hoặc 10 000 000 = 27.57
60 = 22.3.5
200 = 23.52
300 = 22.3.52
cho A=1+2+2^2 +2^3 +...+2^200 .hay viet A+1 duoi dang mot luy thua
A=1+2+22+23+...+2100
=>2A=2+22+23+24+...+2101
=>2A-A=(2+22+23+24+...+2101)-(1+2+22+23+...+2100)
=>A=2101-1
=>A+1=2101-1+1=2101
A = 1+2+22+23+...+2100
2A = 2+22+23+24+...+2100
2A - A = 2100 - 1
=> A = 2100 - 1
=> A + 1 = 2100
A=1+2+2^2 +2^3 +...+2^200
2A = 2+2^2 + 2^3 + ...+2^200 + 2^201
2A - A =( 2+2^2 + 2^3 + ...+2^200 + 2^201)-(1+2+2^2 + 2^3 + ...+2^200 )
=> A = 2^201 - 1
=> A+1 = 2^201
viet duoi dang luy thua co so 10 cua 256.84 la
A 108
B 1012
C 1010
Tìm n thuộc N để n2+n+1 chia hết cho n-1
viet ket qua duoi dang luy thua 4^20 * 8^10
420 . 810
= 410+10 . 810
= 410 . 410 . 810
= (4 . 4 . 8)10
= 12810