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dau coroana.................

Dau Coroana class=

Răspuns :

( 3¹⁹ x 25⁹)² : 15³⁶ = [3¹⁹ x(5²)⁹]² : 3³⁶ x 5³⁶ = 3³⁸ x5³⁶ : 3³⁶ x5 ³⁶ =3²=9
[tex] (3^{19} $\cdot$ 25^{9} )^{2} : 15^{36} = (3^{19} $\cdot$ 5^{2\cdot9} )^{2}:15^{36} = 3^{19\cdot2} $\cdot$ 5^{2\cdot9\cdot2}: 15^{36} = \\ = 3^{38} $\cdot$ 5^{36} : 15^{36} = 3^{38}\cdot (5:15)^{36} = 3^{38} \cdot(1:3)^{36} = \\ = 3^{38} : 3^{36} = 3^{2} =9[/tex]