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a) 3^8 : 3^4 = 3^8-4 = 3^4
b) 10^8 : 10^2 = 10^8-2 = 10^6
c) a^6 : a = a^6-1 = a^5
a) 38 : 34 = 38 – 4 = 34 = 3.3.3.3 = 81;
b) 108 : 102 = 108 – 2 = 106 = 1000000
c) a6 : a = a6 – 1 = a5
a, \(3^8\) : \(3^4\) = \(3^{8-4}\) = \(3^4\)
b, \(10^8\) : \(10^2\) = \(10^{8-2}\) = \(10^6\)
c, \(a^6\) : a ( a \(\ne\) 0 ) = \(a^{6-1}\) = \(a^5\)
Tk mk nha
\(a,11^8:11^3=11^{8-3}=11^5\)
\(b,17^{11}:17^9=17^{11-9}=17^2\)
\(c,4^3:2^2=4^{3-1}=4^2\)
\(d,a^5:a=a^{5-1}=a^4\)
\(3^8:3^4=3^{8-4}=3^4\)
\(10^8:10^2=10^{8-2}=10^6\)
\(a^6:a=a^6:a^1=a^{6-1}=a^5\)
\(2^{10}:2^8=2^{10-8}=2^2\)
\(2^{10}:2^8=1024:256=4\)
tương tự
a,62010:610.63
=62000.63
=62003
b,(38.316):(37.314)
=324:321
=33
c,(226:210):(218:216)
=216:22
=214
d,253:125
=(52)3:(53)
=56:53
=53
k mik nha
a) $3^8:3^6=3^{8-6}=3^2$
$19^7:19^3=19^{7-3}=19^4$
$2^{10}:8^3=2^{10}:(2^3)^3=2^{10}:2^9=2^{10-9}=2^1$
$12^7:6^7=(12:6)^7=2^7$
$27^5:81^3=(3^3)^5:(3^4)^3=3^{15}:3^{12}=3^{15-12}=3^3$
b) $10^6:10=10^{6-1}=10^5$
$5^8:25^2=5^8:(5^2)^2=5^8:5^4=5^{8-4}=5^4$
$4^9:64^2=4^9:(4^3)^2=4^9:4^6=4^{9-6}=4^3$
$2^25:32^4=2^{25}:(2^5)^4=2^{25}:2^{20}=2^{25-20}=2^5$
$18^3:9^3=(18:9)^3=2^3$
\(\cdot3^8:3^6=3^{8-6}=3^2\)
\(\cdot19^7:19^3=19^{7-3}=19^4\)
\(\cdot2^{10}:8^3=2^{10}:\left(2^3\right)^3=2^{10}:2^9=2\)
\(\cdot12^7:6^7=\left(12:6\right)^7=2^7\)
\(\cdot27^5:81^3=\left(3^3\right)^5:\left(3^4\right)^3=3^{15}:3^{12}=3^3\)
\(\cdot10^6:10=10^{6-1}=10^5\)
\(\cdot5^8:25^2=5^8:\left(5^2\right)^2=5^8:5^4=5^4\)
\(\cdot4^9:64^2=4^9:\left(4^3\right)^2=4^9:4^6=4^3\)
\(2^{25}:32^4=2^{25}:\left(2^5\right)^4=2^{25}:2^{20}=2^5\)
\(18^3:9^3=\left(18:9\right)^3=2^3\)
= \(3^8:3^4=\left(3^{8-4}\right)=3^4\)
= \(10^8:10^2=\left(10^{8-2}\right)=10^6\)
\(a^6:a=a^6:a^1=\left(a^{6-1}\right)=a^5\)
34 ;106;a5