zapisz podane liczby w postaci potęg o wykładniku ujemnym. (1/3)^4 (3/8)^3 1/7^5-to odnosi się do 7 6^5 (2 1/4)^7 pissss
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Wzór: a^{-n}=(1/a)^{n}
(1/3)^4=3⁻⁴
(3/8)^3=(8/3)⁻³
1/7^5=7⁻⁵
6^5=(1/6)⁻⁵
(2 1/4)^7 =(9/4)⁷=(4/9)⁻⁷=[(2/3)²]⁻⁷=(2/3)⁻¹⁴
(1/3)^4 = 3^(-4)
(3/8)^3 = (8/3)^(-3)
1 / 7^(-5) = (1/7)^(-5)
6^5 = (1/6)^(-5)
(2 i 1/4)^7 = (9/4)^7 = (4/9)^(-7)