Question: How many former members from the band where Zack De La Rocha was a rapper/vocalist took part in the Audioslave discography? 
Sentence (from "Audioslave discography"): The discography of Audioslave, an American hard rock band, consists of three studio albums, two extended plays (EPs), fourteen singles, two video albums and ten music videos. Formed in Los Angeles, California in 2001, Audioslave was a supergroup featuring former Soundgarden and Temple of the Dog vocalist Chris Cornell and three former members of Rage Against the Machine – guitarist Tom Morello, bassist Tim Commerford and drummer Brad Wilk.
Relevant evidence: Yes