oblicz
a) (1,2)*2,5*(-10)*4*(-2)
b)(-2/3) *5/8*1i1/2*(-8/15)*0,3
c)0,007*1,3*(-1000)*(-20)
d)(-5/6)*(-2,5)*2i2/5*2*(-1)
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a) (1,2)*2,5*(-10)*4*(-2) =240
b)(-2/3) *5/8*1i1/2*(-8/15)*0,3=(-10/24)*(-24/30)*3/10=720/7200=1/10
c)0,007*1,3*(-1000)*(-20)=182
d)(-5/6)*(-2,5)*2i2/5*2*(-1)=(-5/6)*(-25/10)*(-24/5)=125/60 *(-24/5) =(-3000/300)=(-10)