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a fost răspuns

Efectuati:(2pe3)la puterea0+(2/3)la puterea 1+(2/3)la puterea2

Răspuns :

(2/3)^0+(2/3)^1+(2/3)²=
=1+(2/3)^1+(2/3)²=
=1+2/3+(2/3)²=
=1+2/3+4/9=
=19/9


orice numar la puterea 0 = 1
orice numar la puterea 1 = cu acelasi nr.

in cazul nostru (2/3)^1=2/3

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