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A → = A x i ^ + A y j ^ {\displaystyle {\vec {A}}=A_{x}{\widehat {i}}+A_{y}{\widehat {j}}}
A x = A c o s θ {\displaystyle A_{x}=Acos\theta }
A y = A s i n θ {\displaystyle A_{y}=Asin\theta }
( f g ) ′ = g f ′ − f g ′ g 2 {\displaystyle \left({\frac {f}{g}}\right)^{\prime }={\frac {gf^{\prime }-fg^{\prime }}{g^{2}}}}
∃ A : ∃ B : ( S S A ⋅ S S B = S S S S S 0 ) {\displaystyle ~\exists A:\exists B:(SSA\cdot SSB=SSSSS0)}
∃ {\displaystyle \exists }
∃ A : S S 0 ⋅ A = S S S S S S 0 {\displaystyle \exists A:SS0\cdot A=SSSSSS0}
