Odpowiedź:
d) 1/9 - 5 e) 5/8 f) -9,4
Szczegółowe wyjaśnienie:
d) (2x5/6)^2-(3^2-√1+7/9) = (10/6)^2-(9-√16/9)=100/36-(9-4/3)= 100/36-9+4/3=
=100/36+4x12/3x12-9=100/36+48/36-9= 148/36-9=4+4/36-9=4/36-5=2/18-5= 1/9-5
e)[(-2/3)^2:8/9]^2-(3/4-1+1/8)=[4/9:8/9]^2-(3x2/4x2-9/8) = [4/9x9/8]^2 -(6/8-9/8) = (36/72)^2-(-3/8)= (1/2)^2+3/8=1/4+3/8=1x2/4x2+3/8=2/8+3/8=5/8
f) 1,6x7/16-2,7/3^3-5x0,7/0,35=0,1x7-2,7/27-3,5/0,35=0,7-0,1-10=0,6-10=-9,4
Przydatne info
1+7/9=16/9
√16/9=√16/√9
4/9:8/9=4/9x9/8
-(3/4-9/8)=-3/4+9/8
