Question

Calculati:
{2,2:[0,2+0,0(2):0,(02)]-(0,(6))²}:1,(5)=
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Answer 1

Răspuns:

{2,2:[0,2+0,0(2):0,(02)]-(0,(6))²}:1,(5)=

=[2,2:(2/10+2/90:2/99)-(6/9)²]:(15-1)/9=

[22/10:(2/10+2/90·99/2)-6²/9²]:14/9=

2/90·99/2 se reduc termenii pe diagonala

[22/10:(2/10+11/10)-(36/81)⁽⁹]·9/14=

(22/10:13/10-4/9)·9/14=

(22/10·10/13-4/9)·9/14=

22/10·10/13 se reduc termenii pe diagonala

(⁹⁾22/13-¹³⁾4/9)·9/14=

(198/117-52/117)·9/14=

146/117·9/14=

146/182=0,802