Autorzy:Maciej Antek, Krzysztof Belka, Piotr Grabowski
Wydawnictwo:Nowa Era
Rok wydania:2015
Oblicz 4.43 gwiazdek na podstawie 7 opinii

`a)\ (8:(-1 3/5)-(4 1/2*1 2/3-3 3/4))/(1/2*2 1/2)=(8:(-8/5)-(strike9^3/2*5/strike3^1-3 3/4))/(1/2*5/2)=(8*(-5/8)-(15/2-3 3/4))/(5/4)=`  

`\ \ \ =(-5-(7 1/2-3 3/4))/(5/4)=(-5 -(7 2/4-3 3/4)):5/4=(-5 -(6 6/4-3 3/4)):5/4=`           

`\ \ \ =(-5-3 3/4)*4/5=-8 3/4*4/5=-25strike4^1*strike4^1/5=-35/5=-7` 

 

 

 

 

`b)\ (1/2-2/5:(1 2/3-2 1/5))/(2/3*1 1/2-3/4)=(1/2-2/5:(1 10/15-2 3/15))/(2/3*3/2-3/4)=(1/2-2/5:(-(2 3/15-1 10/15)))/(1-3/4)=` 

`\ \ \ =(1/2-2/5:(-(1 18/15-1 10/15)))/(1/4)=(1/2-2/5:(-8/15))/(1/4)=(1/2-strike2^1/strike5^1*(-strike15^3/strike8^4))/(1/4)=`  

`\ \ \ =(1/2+3/4)/(1/4)=(1/2+3/4):1/4=(1/2+3/4)*4/1=(2/4+3/4)*4/1=5/strike4^1*strike4^1/1=5` 

 

 

 

`c)\ ((2/strike3^1*strike(2,7)^(0,9)-7/15:1/3):1/25*[3/4-1/6])/(8/15+0,3)=((1,8-7/strike15^5*strike3^1/1)*25/1*[9/12-2/12])/(8/15+3/10)=` 

`\ \ \ =((1,8-7/5)*25*7/12)/(16/30+9/30)=((1,8-1,4)*25*7/12)/(25/30)=(0,4*25*7/12)/(5/6)=` 

`\ \ \ =(10*7/12):5/6=70/strike12^2*strike6^1/5=70/10=7` 

 

 

 

`d)\ ((1/5+1,3):3/2-(18 3/4-4,95):2 3/10)/(1 1/5:0,6-2 2/5*1,25)=((0,2+1,3)*2/3-(18,75-4,95):2,3)/(1,2:0,6-2 2/5*1 1/4)=` 

`\ \ \ =(strike(1,5)^(0,5)*2/strike3^1-13,8:2,3)/(12:6-strike12^3/strike5^1*strike5^1/strike4^1)=(1-138:23)/(2-3)=(1-6)/(-1)=(-5)/(-1)=5`