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\(3^2=3\cdot3=9\)
\(4^{10}=4.4.4.4.4.4.4.4.4.4=1048576\)
\(7^4=7\cdot7\cdot7\cdot7=2401\)
\(8^2=8\cdot8=64\)
34: 32= 34- 2= 32= 9.
33. 34= 33+ 4= 37= 2187.
52. 55= 52+ 5= 57= 78125.
1914: 197= 1914- 7= 197= 893871739.
\(4^8.2^{20}.9^{12}.27^5.81^4.25^{20}.125^4\)
\(=\left(2^2\right)^8.2^{20}.\left(3^2\right)^{12}.\left(3^3\right)^5.\left(3^4\right)^4.\left(5^2\right)^{20}.\left(5^3\right)^4\)
\(=2^{16}.2^{20}.3^{15}.3^{16}.5^{40}.5^{12}\)
\(=2^{16+20}.3^{15+16}.5^{40+12}\)
\(=2^{36}.3^{31}.5^{52}\)
a)
\(2^3=8\\ 2^4=16\\ 2^5=32\\2^6=64\\ 2^7=128\\ 2^8=256\\ 2^9=512\\ 2^{10}=1024 \)
b)
\(3^2=9\\3^3=27\\ 3^4=81\\ 3^5=243\)
c)
\(4^2=16\\ 4^3=64\\ 4^4=256\)
d)
\(5^2=25\\ 5^3=125\\ 5^4=625\)
e)
\(6^2=36\\ 6^3=216\\ 6^4=1296\)
a) = (3.23)3.3-(2.3)4.25
= 33.(23)3.3-24.34.25
= 34.29-29.34
=0
4^3^10=4^30=(4^2)^15=..........6^15=...........6
2^2^5=2^10=(2^4)^2 . 2^2=...........6^2 . ...........4=.............4
2^3^4=2^12=(2^4)^3=.............6^3=...............6
3^3^3=3^9=(3^4)^2 . 3=..............1^2 . 3=..............3
9^9^9=9^81=(9^2)^80 . 9=..............1^80 . 9=.................9
\(25^2-24^2=49=7^2=\left(-7\right)^2\)
\(6^2-3^2=27=3^3\)
\(8^4.2^3=\left(2^3\right)^4.2^3=2^{12}.2^3=2^{15}\)
a) 252 - 242 = 625 - 576
= 49 = 72
b) 62 - 32 = 36 - 9
= 27 = 33
c) 84 . 23 = 4096 . 8
= 32768 = 216
Tính giá trị các lũy thừa sau :
a) 25 = 2.2.2.2.2 = 32
b) 34 = 3.3.3.3 = 81
c) 43 = 4.4.4 = 64
d) 54 = 5.5.5.5 = 625
\(3^8=6561\)
\(2^4=16\)
\(19^4=130321\)
38 = 32 . 32 . 32 . 32
= 9 . 9 . 9 . 9
= 92 . 92
= 81 . 81
= 812
= 6561
24 = 2 . 2 . 2 . 2
= 22 . 22
= 4 . 4
= 42
= 16