1) (-1)*2*(-3)*4*(-5)*1/2*(-1/3)*1/4*1/5= 2)(-2)*(-4)*0,5*(-0,25)*(-6)=
1) (-1)*2*(-3)*4*(-5)*1/2*(-1/3)*1/4*1/5= =1*(2*1/2)*(3*1/3)(4*1/4)*(5*1/5)= =1*1*1*1*1=1; 2)(-2)*(-4)*0,5*(-0,25)*(-6)= =(2*0,5)*(4*0,25)*6=1*1*6=6.