5m Zen
F x d x
F x d x pictures 5
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F x d
F x d x
d x )u003d f x )- g x
f x )u003d 4x 1 d u003d x
f x )u003d k * x d
d f x x 5
d dx f x f u0026#39;( x
f x )u003d mx c x d
f x )u003d n x )/ d x
d f x )/ g x ))/ dx
f x d x
f x d x cos
