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4TXxtG - 1
Calculation: 4TXxtG - 1
F
_
fr
=
μ
*
N
F
_
fr
=
μ
*
N
$$F_{fr}$$
=
$$\mu\cdot N$$
F
_
fr
=
N
*
μ
$$F_{fr}$$
=
$$N\cdot \mu$$
