Question: Question 3 5 pts Prove the identity. Show your work on paper, starting with the left side of the equation, and showing each step as

Question 3 5 pts Prove the identity. Show your work on paper, starting with the left side of the equation, and showing each step as you transform the left side of the equation into the right side. cos(a + B) cos(a - B) = cos2 (B) - sin? () This item will be hand-graded based on the work shown on your paper. You do not need to enter anything on the online exam. Edit Format Table 12pt Paragraph BIU A &V TV WP
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