Question

Oblicz:
1. - 3 1/7 - 1, 2 =
2. 4 5/6 - 8,2 =
3. (1/3) do potęgi 2 x (-9)=
4. - 6 do potęgi 2 : 1/2 =
5. 3 3/4 : (-1,25 ) do potęgi 2=
proszę o wszystkie obliczenia po kolei
z góry dziękuję ^.^

Answer 1

1. - 3  1/7 - 1, 2 = - 22/7 - 12/10 = -220/70 - 84/70 = 204/70 = 2 64/70
2.  4  5/6 - 8,2 = 29/6 - 82/10 = 145/30 - 246/30 = -101/30 = -3 11/30
3. (1/3)^2 x (-9) = 1/9 * (-9) = -9/9 = -1
4. - 6^2 : 1/2 =- 36 *2 = -72
5. 3  3/4  : (-1,25 )^2 = 15/4 : 1,5625 = 15/4 : 15625/10000 = 15/4 * 10000/15625 = 3/1*2500/3125 = 7500/3125 = 60/25 = 12/5 = 2 2/5