[tex] x_{123} x^{2} x_{123} x^{123} \leq \geq \geq \neq \pi \alpha \left \{ {{y=2} \atop {x=2}} \right. \int\limits^a_b {x} \, dx \lim_{n \to \infty} a_n \int\limits^a_b {x} \, dx \left \{ {{y=2} \atop {x=2}} \right. \neq \neq \pi [/tex]³²≥≡⇒βΔ