Witam :)
1) Oblicz wartości funkcji f dla podanych argumentów:
f(x)= 8^x
a) f(1/3)=
b) f(2/3)=
c) f(-1)=
d) f(-1/3)=
Zad.1
a) f(1/3) = 8 ^1/3 =
b) f(2/3) = 8 ^ 2/3 = = 4
c) f(-1) = 8^ -1 = 1/8
d) f(-1/3) = 8^ -1/3 = 1/8 ^ 1/3 =
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Zad.1
a) f(1/3) = 8 ^1/3 =![\sqrt[3]{8} = 2 \sqrt[3]{8} = 2](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B8%7D+%3D+2)
b) f(2/3) = 8 ^ 2/3 =
= 4
c) f(-1) = 8^ -1 = 1/8
d) f(-1/3) = 8^ -1/3 = 1/8 ^ 1/3 =![\sqrt[3]{1/8} = 1/2 = 0,5 \sqrt[3]{1/8} = 1/2 = 0,5](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B1%2F8%7D+%3D+1%2F2+%3D+0%2C5)