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1)calculati (3X2 la puterea2002 -2 la puterea 2005):4 la puterea 1001
2)aflati numarul natural xdin egalitatea 2 la puterea x +3 X2 la puterea x=256


Răspuns :

[tex] (3*2^{2002} - 2^{2005} ): 4^{1001} =[/tex]
[tex]= (3*2^{2002} - 2^{2005} ): 2^{ 2^{1001} =[/tex]
[tex]= (3*2^{2002} - 2^{2005} ): 2^{2002} =[/tex]
[tex]=3*2^{2002}: 2^{2002} - 2^{2005} : 2^{2002} =[/tex]
=3-[tex] 2^{3} =[/tex]=3-8=-5