Помогите 3 и 4 срочно

[latex] x^{2} \left \{ {{y=2} \atop {x=2}} \right. \frac{x}{y} \int\limits^a_b {x} \, dx \int\limits^a_b {x} \, dx x_{123} \left \{ {{y=2} \atop {x=2}} \right. \left \{ {{y=2} \atop {x=2}} \right. \left \{ {{y=2} \atop {x=2}} \right. \left \{ {{y=2} \atop {x=2}} \right. \left \{ {{y=2} \atop {x=2}} \right. [/latex]