Câu 57: Trong 28 - sgk toán 6 tập 1
Tính giá trị các lũy thừa sau:
a) $2^{3},2^{4},2^{5},2^{6},2^{7},2^{8},2^{9},2^{10}$
b) $3^{2},3^{3},3^{4},3^{5}$
c) $4^{2},4^{3},4^{4}$
d) $5^{2},5^{3},5^{4}$
e) $6^{2},6^{3},6^{4}$
Bài Làm:
Ta có :
a)
$2^{3}=2.2.2=8$
$2^{4}=2^{3}.2 =8.2=16$
$2^{5}=2^{4}.2 =16.2=32$
$2^{6}=2^{5}.2 =32.2=64$
$2^{7}=2^{6}.2 =64.2=128$
$2^{8}=2^{7}.2 =128.2=256$
$2^{9}=2^{8}.2 =256.2=512$
$2^{10}=2^{9}.2 =512.2=1024$
b)
$3^{2}=3.3=9$
$3^{3}=3^{2}.3=9.3=27$
$3^{4}=3^{3}.3=27.3=81$
$3^{5}=3^{4}.3=81.3=243$
c)
$4^{2}=4.4=16$
$4^{3}=4^{2}.4=16.4=64$
$4^{4}=4^{3}.4=64.4=256$
d)
$5^{2}=5.5=25$
$5^{3}=5^{2}.5=25.5=125$
$5^{4}=5^{3}.5=125.5=625$
e)
$6^{2}=6.6=36$
$6^{3}=6^{2}.6=36.6=216$
$6^{4}=6^{3}.6=216.6=1296$
