quero calcular quanto vale cos x {\displaystyle \cos x\,\!} para qualquer x {\displaystyle x\,\!}
5 + 3 12 {\displaystyle {\frac {5+3}{12}}}
ρ ¯ = 1 n ∑ i = 1 n ρ i {\displaystyle {\bar {\rho }}={\frac {1}{n}}\sum _{i=1}^{n}\rho _{i}}
σ = ∑ i = 1 n ( ρ i − ρ ¯ ) 2 n − 1 {\displaystyle \sigma ={\sqrt {\frac {\sum _{i=1}^{n}(\rho _{i}-{\bar {\rho }})^{2}}{n-1}}}}
z = ρ i − ρ ¯ σ {\displaystyle z={\frac {\rho _{i}-{\bar {\rho }}}{\sigma }}}
[ 5 6 3 7 8 3 7 2 9 ] {\displaystyle {\begin{bmatrix}5&6&3\\7&8&3\\7&2&9\end{bmatrix}}}
s e n 2 x + c o s 2 x = 1 {\displaystyle sen^{2}\quad x+cos^{2}\quad x=1}
p A ′ = p A + Δ p {\displaystyle p'_{A}=p_{A}+\Delta p}
p A ′ = p A + Δ p {\displaystyle \ p'_{A}=p_{A}+\Delta p}
Átomo
para qualquer
