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Help!!!! Dau coroana, am nevoie de răspuns, ms, urgent!!!! ​

Help Dau Coroana Am Nevoie De Răspuns Ms Urgent class=

Răspuns :

12.
a)1/25 b)1/8 c)9/16 d)1 e)13/14 f)100/81
13.
a) (3/2)^5+7=(3/2)^12
b)(4/10)^3+5=(4/10)^8
c)(15/9)^3+4=(15/9)^7
d)(5/7)^3-2=5/7
e)(5/8)^13-1=(5/8)^12
f)1
g)(2/3)^3•6=(2/3)^18
h)(7•1/4)^3•2=(7•1/4)^6
i)1
j)(1/2)^3•4•2=(1/2)^24