Question

Помогите разгадать кроссворд

Answer 1

$alpha intlimits^a_b {x} , dx x_{123} left[begin{array}{ccc}1&2&3\4&5&6\7&8&9end{array}right] left[begin{array}{ccc}1&2&3\4&5&6\7&8&9end{array}right] lim_{n to infty} a_n intlimits^a_b {x} , dx sqrt[n]{x} x_{123}$