Which of the following complete step 4 of the proof? 1 and 1 2 and 1 (cosacosb)2(sinasinb)2 and (cos2(a – b))((sin2(a – b)) (cos2a + sin2a)(cos2b + sin2b) and (cos2(a – b))(sin2(a – b)).

All of the following are free tools to you prepare for the sat except

True or falseaccording to the fifth amendment people cannot be tried for the same exact crime more than once

When looking at research about instructional strategies, make sure the research is a. from peer-reviewed studies. b. approved by state and federal government organizations. c. online and easily accessible. d. about the same topic you're interested in.