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Calculati: a) (3^57:9^25x3^10):3^15=?, b) 2x4x2^43-2^46+[9^74:3^43-(3^15)^6]^0=?

Răspuns :

(3^57/3^2*25*3^10)/3^15=3^17/3^15=3^2=9  b)2*2^2*2^43-2^46+(3^2*74/3^43-3^3*5^6)0=0+3^148/3^43-3^90)^0=0+3^145-3^90)^0=1
a) = 3^(7+10-15) = 3^2=9
b) = 2^(1+2+43)-2^46 + [bla, bla bla]^0 = 0 +1=1