===א===
<math>\int_1^\infty e^{-ln^2(x)}dx</math>
===ב===
<math>\int_0^\infty x^2sin(x^4)dx</math>
===ג===
<math>\int_1^\infty\frac{cos(x)}{x}</math>
===ד===
<math>\int_1^\infty\frac{|cos(x)|}{x}</math>
===ה===
<math>\int_1^\infty\frac{cos^2(x)}{x}</math>