Z.z kl.1 str. 21. zad 76
f) (-5 1/7-9/14):(-1+17/35)=
g)(1 1/6-5 3/4)x(-12):1,1=
h) (-2/3)<do potegi 2>x(-12,3+3,3)<do potęgi drugiej> =
i) (-0,3) <do potęgi 3>:(-1 + 2/5)<do potegi 2>
j(2,5-2 1/3)<do potegi 2>-(-1/3)<do potegi 3> :2/3 =
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f) (-5 1/7-9/14):(-1+17/35)=(-5 2/14-9/14):(-18/35)=-5 11/14*(-35/18)=
=81/14*(-35/18)=-45/4=-11 1/4
g) (1 1/6-5 3/4)*(-12):1,1=(1 2/12-5 9/12)*(-12):1,1=-5 7/12*(-12):1,1=
=-67:1,1=--670:11=-60 10/11
h) (-2/3)^2*(-12,3+3,3)^2=4/9*(-9)^2=4/9*81=36
i) (-0,3)^3:(-1+2/5)^2=-0,027:(-3/5)^2=-0,027:9/25=-27/1000*25/9=-3/40
j) (2,5-2 1/3)^2-(-1/3)^3:2/3=(2 15/30-2 10/30)^2-(-1/27):2/3=(5/30)^2-(-1/27)*3/2=(1/6)^2-(-1/18)=1/36-(-2/36)=1/6+2/36=3/36=1/12