\(x^2\) \( \frac{x}{y} \) \(\underset{x}{\cdot}\) \(\left\{a\\b \right\} \) \(\require{enclose}a_{\enclose{3}}\)
\(x^2\) looks better than x^2 \(x^{y^3}\) \(e^{x^2}\) \(x_{i_1}\) \(\int^{10}_1x^2dx\) \(x_1+\cdots+x_n\) \(\hat\mu=\bar{x}\)
\(x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\) \(L(\lambda)=\frac{\lambda^{\sum{x_i}}e^{-n\lambda}}{\prod{x_i!}}\)
\int_a^b try an equation \(x^3\) like this and 3 \(\times\) 3 = 9 and a \(\ddot x\) \(\frac{x}{y}\) \(\pmatrix{a&b\\c&d}\) \(\phi \times \gamma\) = 2 \(\require{enclose} a_{\enclose{actuarial}{3}}\)
... and then used is this one. Code: \[ {}_{17|}\ddot{a}_{x:\annuity{n}}^{(4)} \] \[ {}_{17|}\ddot{a}_{x:\annuity{n}}^{(4)} \]
\( \require{enclose} \def \annuity#1{{\enclose{actuarial}{#1}}} \) \annuity is defined in this post.... Code: \( \require{enclose} \def \annuity#1{{\enclose{actuarial}{#1}}} \)