POMOCY. Matma ;( potrzebuje na teraz . !!!
zadania z zalączniku
3, 4 .
i u gory widac podpunkt c z zadania 2 wiec go tez prosze zrobic .
pomocy .
" Life is not a problem to be solved but a reality to be experienced! "
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zad.2
c)
(1/2)^2 = 1/8
(-2/3)^4 = 16/81
(1 i 3/4)^3 = (7/4)^3 = 343/64
(-3 i 1/3)^5 = (-10/3)^5 = - 100000/243
(-2 i 2/3)^3 = (- 8/3)^3 = -512/27
zad.3
a) 2^-4= 1/2^4
10^-9 = 1/10^9
5^-5 = 1/5^5
(-3)^-4 = 1/3 ^4
b) (0,3)^-4 = (3/10)^-4 = 10/3^4
(-0,5)^-3 = (1/2)^-3 = 2 ^3
(0,02)^-5 = (1/50)^-5 = 50^5
(-0,04)^-2 = (-1/25)^-2 = 25^2
(-0,0002)^-4 = (-1/500)^-3 = 500^3
c) (3/4)^-3 = 4/3^3
(- 3 i 1/3) ^-3 = (- 10/3) ^-3 = - 3/10^3
(3/5)^-3 = 5/3^3
(-4/7)^-2 = 7/4^2
(-1 i 2/3) ^-4 = (-5/3)^-4 = 3/5^4
Zad.4
a) 5^4 x 5^4 x 5^2 = 5^10
(-2)^7 x (-2)^5 x (-2)^3 = (-2)^15
b) (0,2)^3 x (0,2)^3 x (0,2)^2 = (0,2)^8
(-3,2)^10 x (-3,2)^12 x (3,2)^20 = (-3,2) ^42
c) (2/9) ^5 x (2/9)^9 x (2/9)^7 = (2/9)^ 21
( 5 i 2/4)^4 x (-5 i2/5)^20 x (-5 i 2/5)^10 = (-5 i 2/5)^34
znak ^ - to znak potegi
znak x - znak mnozenia