EntityQ1206853· pop 12· linked from 24 articlesLagrange's identitySign in to savemathematical identity in algebraConnectionsJoseph-Louis LagrangeEntityalgebraEntityInternational Standard Book NumberEntitycomplex numberEntityreal numberEntityWayback MachineEntityparallelogramEntityabsolute valueEntityLagrangian pointEntityscalar productEntityquaternionEntitycross productEntityparallelepipedEntitymean value theoremEntitycomplex conjugateEntityCauchy–Schwarz inequalityEntitylist of trigonometric identitiesEntityLagrangian mechanicsEntityQ.E.D.Entitylinear independenceEntityCategoriesAlgebraic identitiesMultilinear algebra