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Ex 1 va rog mult!!! Dau coroana !

Ex 1 Va Rog Mult Dau Coroana class=

Răspuns :

a)(2/3)^4=16/81

2•2=4, 2•2=4

4•4=16

3•3•3•3=

9•9=81

a=16/81

b)(5/3)^3=125/27

5•5•5=

25•5=125

3•3•3=

9•3=27

b=125/27

c)(5/3)^0=1/1

5•0=1

3•0=1

c=1/1

d)(7/2)^2=14/4

7•7=14

2•2=4

d=14/4

e)(5/3)^2=25/9

5•5=25

3•3=9

e=25/9

f)(8/9)^2=64/81

8•8=64

9•9=81

f)64/81

Sper te-am ajutat!!