Question

Oblicz ( w załączniku)

lepsza jakosc

daje naj

Answer 1

e) 3/5 - (1,4 * 5/14 - [0,9/3^2]): (-1/5) =

3/5 - (1 4/10 * 5/14 -   [9/10  //9]) * (-5) =

3/5 - (14/10 * 5/14 - [9/10 * 1/9]) * (-5) =

3/5 - (5/10 - 1/10) * (-5) =

3/5 - 4/10 * (-5) =

3/5 + 20/10 = 

6/10 + 20/10 = 26/10 = 2 6/10 = 2 3/5

 

 

f) [5 3/4 - 8 1/3 // 1/2 - (2/3)^2 ] - 2/3 : (-4/27) = 

[23/4 - 25/3 // 1/2 - 4/9] - 2/3 * (-27/4) =

[69/12 - 100/12  // 9/18 - 8/18] + 9/2 =

( -31/12 // 1/18) + 9/2 =

(- 31/12 * 18) + 9/2 =

-558/12 + 9/2 =

-93/2 + 9/2 = -84/2 = - 42