What is the ruling on a triple divorce conditioned upon the wife's returning to her work again, bearing in mind that the wife had been previously divorced once?

If the husband says to his wife, "Leave your job and stay home, otherwise you are divorced by three," this is a conditional divorce.

The preponderant opinion in this matter is that it refers back to the intention of the speaker. If he intended to prevent her from going to work and did not intend divorce, then he must pay expiation for an oath (kaffarat yamin) if she goes to work, and no divorce occurs. If he intended the divorce to occur, then one revocable divorce takes place if she goes to work.

As for the divorce of an angry person, there is a detailed explanation regarding it.