Ответ:
4,5*F
Объяснение:
Г=2 F L=?
===
Г=f/d=2
f=2*d
1/F=1/d+1/f
F=d*f/(d+f)=2*d/3
d=3*F/2
L=f+d=3*d=4.5*F
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Verified answer
Ответ:
4,5*F
Объяснение:
Г=2 F L=?
===
Г=f/d=2
f=2*d
1/F=1/d+1/f
F=d*f/(d+f)=2*d/3
d=3*F/2
L=f+d=3*d=4.5*F
============================