Subjects/Calculus II/Appendix B: useful equivalences/FormulaB. Appendix B: useful equivalencesFormulaIn B. Appendix B: useful equivalencesFormulaCopy LaTeX∫x2+a2dx=arsenh(ax)+CVariablesCConstant real de integraciónxVariable independiente (variable de integración)aConstant real (a menudo a>0)dxDiferencial respecto de xRelated formulasRelatedFormulaarsenh(ax)=lnx+x2+a2−lna,a>0Open formulaOpen in sectionRelatedFormula∫tanxdx=−ln∣cosx∣+C=ln∣secx∣+C.Open formulaOpen in section