Matematică, întrebare adresată de pinteagina, 9 ani în urmă

Efectuati :
a) (2^6)^4:4^11
b)(3^4)^7:9^13
c)(2^9)^2
d)8^24:16^18
e)125^9:25^13
f)81^15:27^20
g)8^13^2:64^84
h)3^7^2:81^12

Răspunsuri la întrebare

Răspuns de renatemambouko
15
a) (2^6)^4:4^11 =2^24:2^22=2^2=4
b)(3^4)^7:9^13 =3^28:3^26=3^2=9
c)(2^9)^2 =2^18
d)8^24:16^18 =2^72:2^72=1
e)125^9:25^13 =5^27:5^26=5
f)81^15:27^20 =3^60:3^60=1
g)8^13^2:64^84 =2^507:2^504=2^3=8
h)3^7^2:81^12=3^49:3^48=3
Răspuns de Utilizator anonim
18
a).(2^6)^4:4^1^1=2^2^4:(2^2)^1^1=2^2^4:2^2^2=2^2^4^-^2^2=2^2=4 \\  \\ b).(3^4)^7:9^1^3=3^2^8:(3^2)^1^3=3^2^8:3^2^6=3^{28-26}=3^2=9 \\  \\ c).(2^9)^2=2^{ 9 \cdot 2}=2^1^8 \\  \\ d).8^2^4:16^1^8=(2^3)^2^4:(2^4)^1^8=2^7^2:2^7^2=1 \\  \\ e).125^9:25^1^3=(5^3)^9:(5^2)^1^3=5^2^7:5^2^6=5^2^7^-^2^6=5^1=5 \\  \\ f).81^1^5:27^2^0=(3^4)^1^5:(3^3)^2^0=3^6^0:3^6^0=1 \\  \\ g). 8^{ 13^{2} } :64^8^4=8^1^6^9:(8^2)^8^4=8^1^6^9:8^1^6^8=8^1^6^9^-^1^6^8=8^1=8

h). 3^{ 7^{2} } :81^1^2=3^4^9:(3^4)^1^2=3^4^9:3^4^8=3^4^9^-^4^8=3^1=3
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