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0,5- 1/2 *(3/4 - 0,25)=
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Răspuns :

0,5 - 1 / 2 x ( 3 / 4 - 0,25 ) = 

= 5 / 10 - 1 / 2 x ( 3 / 4  - 25 / 100 ) 

= 1 / 2  - 1 / 2 x ( 3 / 4 -  1  /  4 )

= 1 / 2 - 1 / 2 x 2 / 4

= 1 / 2 - 1 / 2 x 1 / 2

= 1 / 2 - 1 / 4

= 1 / 4
Cartea78
[tex]0,5- \frac{1}{2} *( \frac{3}{4} - 0,25 )= \frac{1}{2} - \frac{1}{2} *( \frac{3}{4}- \frac{1}{4} )= \\ \\ \\ \\ = \frac{1}{2} - \frac{1}{2} * \frac{1}{2} = \frac{1}{2} - \frac{1}{4} =\frac{1}{4} [/tex]

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