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Calculati :
(3 ¹⁹ · 25 ⁹) ² : 15 ³⁶ =


Răspuns :

[tex]S=\frac{(3^{19}*25^{9})^{2}}{15^{36}}\\S=\frac{[3^{19}*(5^{2})^{9}]^{2}}{(3*5)^{36}}\\ S=\frac{(3^{19}*5^{2*9})^{2}}{3^{36}*5^{36}}\\S=\frac{(3^{19}*5^{18})^{2}}{3^{36}*5^{36}}\\ S=\frac{(3^{19})^{2}*(5^{18})^{2}}{3^{36}*5^{36}}\\S=\frac{3^{19*2}*5^{18*2}}{3^{36}*5^{36}}\\ S=\frac{3^{38}*5^{36}}{3^{36}*5^{36}}\\S=\frac{3^{38}}{3^{36}}\\S=3^{38-36}\\S=3^{2}\\S=9\\ Sfarsit![/tex]