proszę o rozwiązanie chociaż 2 zadań. To jest pilne :) Z góry thx. Zadanie jest w załączniku.
11. a) =5^{2} x 5^{3} x 1=5^{5}
b) =(1/9)^{2} x 1/9 x (1/9)^{6}=(1/9)^{9}
c) 3^{2} x 3^{9} x 3^{3} 3^{14}
= ------------------------- = ---------- = 3^{11}
3^{3} 3^{3}
d) 7:7^{2} 7^{-1}
= ------------------- = -------------------- = 7^{-8}
7^{7} 7^{7}
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11. a) =5^{2} x 5^{3} x 1=5^{5}
b) =(1/9)^{2} x 1/9 x (1/9)^{6}=(1/9)^{9}
c) 3^{2} x 3^{9} x 3^{3} 3^{14}
= ------------------------- = ---------- = 3^{11}
3^{3} 3^{3}
d) 7:7^{2} 7^{-1}
= ------------------- = -------------------- = 7^{-8}
7^{7} 7^{7}