Ответ:
5 k
Объяснение:
R45=3+3=6 k
R23=3+3=6 k
R2_5=6/2=3 k
R67=3+3=6 k
R2_7=R2_5*R67/(R2_5+R67)=3*6/(3+6)=2 k
Rэ=R1+R2_7=3+2=5 k
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Ответ:
5 k
Объяснение:
R45=3+3=6 k
R23=3+3=6 k
R2_5=6/2=3 k
R67=3+3=6 k
R2_7=R2_5*R67/(R2_5+R67)=3*6/(3+6)=2 k
Rэ=R1+R2_7=3+2=5 k
==========================