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a) 2³ (3/5)² (-1)⁵ (-7)⁰

b) (1 2/5)² (-2 1/2)² -1,2² -4³



Odpowiedź :

Odpowiedź:

a)

2³ = 2 * 2 * 2 = 8

(3/5)² = 3/5 * 3/5 = 9/25

(- 1)⁵ = (- 1)  * ( - 1) * (  - 1) * ( - 1) * ( - 1) = - 1

(- 7)⁰ = 1

b)

(1 2/5)² = (7/5)² = 7/5 * 7/5 = 49/25 = 1 24/25

(- 2 1/2)² = (- 5/2)² = (- 5/2) * (- 5/2) = 25/4 = 6 1/4

- 1,2² = - (1,2)² = - (1,2 * 1,2) = - 1,44

- 4³ = - (4 * 4 * 4) = - 64