Oblicz.
a) (5 do potęgi -1 + 5)do potęgi 2 -(1/25)do potęgi -1: 5 do potęgi -2 -5 do potęgi -2 =
b) (1/3) do potęgi -2 - (-3/7) do potęgi 0 x 36 x ()do potęgi -1
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a)
(5-¹+5)²-(¼)-¹ :(5)-² -(5)-²=(⅕+5)² -4: ¹/₂₅ -¹/₂₅=⁶⁷⁶/₂₅-4·25-¹/₂₅=
27,04-100-¹/₂₅=-73
b)
(⅓)-² - (-³/₇)⁰·36·(√16)-¹=9+1·36·4-¹=9+36·¼=9+9=18