worth more or less $($Including zero$)$ depending on your answer.

Which of the following is a formal definition of synergy?

Synergy describes the extra impact produced when things, people, or ideas work together. For example, bread, peanut butter, and jelly can all be eaten alone, but putting them together creates a delicious sandwich.

Synergy means that the whole is greater than the sum of its parts.

Doctors warn patients not to drink while taking pain medication because their synergy, the combined chemical action of the two drugs, can cause internal bleeding.

Synergy is a noun that means "combined action or operation."