Răspunsuri

2014-09-05T20:42:34+03:00
(49 supra 9) la puterea 21 : [(49 supra 9)la puterea 4] la puterea 5 =
= (49 supra 9) la 21 : (49 supra 9) la 20
= 49 supra 9 :)
8 4 8
2014-09-05T20:55:14+03:00
(49/9)^21:5,(4)^20=49/9^21:{(54-5)/9}^20=(49/9)^(21-20)=(49/9)^1=49/9
scz am o intrebare {[5,4]⁴}la put 5 devine {[54supra 10}]la put 5
devine ( 54/10)^(4*5)=(54/10)^20, formula este (x^a)^b=x^(a*b)