1.
Oblicz: PROSZĘ O WSZYSTKIE OBLICZENIA!
Załącznik o nazwie Matma do zadania pierwszego
2. Przedstaw w postaci potęgi:
Załącznik o nazwie 20121113_150448 do zadania drugiego.
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1.
(-3)⁻² = (-1/3)² = 1/9
4)
(6⁻¹ + 3⁻¹)⁻³ = (1/6 + 1/3)⁻³ = (1/6 + 2/6)⁻³ = (3/6)⁻³ = (1/3)⁻³ = 3³ = 27
5)
(3/7)⁵ × (2⅓)³ = (3/7)⁵ × (7/3)³ = (3/7)⁵ × (3/7)⁻³ = (3/7)² = 9/49
6)
(1⅓)⁻³ = (4/3)⁻³ = (3/4)³ = 27/64
2.
1)
(-80)⁴⁰ : 40⁴⁰ = (-80/40)⁴⁰ = (-4)⁴⁰ = 4⁴⁰
2)
(a³×a⁶)²:(a²×a)³ (a⁹)² : (a³)³ a¹⁸ : a⁹
-------------------- = ----------------- = ------------ = a⁹:a⁶ = a⁹⁻⁶ = a³
(a⁸:a⁵)² (a³)² a⁶