Va rog sa ma ajutati la ex 1 si 4 este urgent .
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Ex 1:
a)19^2=361
b)3^4=81
c)2^1+2019^0=
=2+1=
=3
d)2^25:2^24•2=
=2^1•2=
=4
e)3^0+1^7=
=1+1=
=2
f)32:4^2=
=32:16=
=2
Ex 4:
a=100-(7^2+3^3)
a=100-(49+27)
a=100-76
a=24
b=25^4:5^8
b=(5^2)4:5^8
b=5^8:5^8
b=1
b^a=1^24=1
:)