Основы теоретической физики/test

$\left\vert {\overline {\underline {\cancel {\int \limits _{a}^{b}{\Big \vert }_{t_{1}}^{t_{2}}={\bcancel {0}}}}}}\right\vert$
$\left.{\dfrac {1+{\dfrac {1}{{\dfrac {1}{y}}-x}}}{1+{\dfrac {1}{y}}}}+{\dfrac {1+{\dfrac {1}{x}}}{1+{\dfrac {1}{y}}}}+{\dfrac {x}{y}}\right\vert _{a}^{b}$

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$x(t)=a\cos \left(\omega t+\alpha \right)+{\frac {f}{m\left({\omega ^{2}}-{\gamma ^{2}}\right)}}\left(\cos(\gamma t+\beta )-\cos(\omega t+\beta )\right)$