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Home > PC > Chapter 8 > Lesson 8.2.2 > Problem 8-96

8-96.

Use your results from the previous problem to show that (sin x + cos x)4 − (sin x − cos x)4 = 4 sin(2x). Homework Help ✎

The answer to the previous problem was:
8ab(a2 + b2)
Substitute sinx for 'a' and the cosx for 'b'.

Show all of your work to get the following answer: 4sin(2x)