Solved: For individual or collaborative investigation (Exercises 5962) In earlier work
Chapter 8, Problem 60(choose chapter or problem)
For individual or collaborative investigation (Exercises 5962) In earlier work we derived identities, or formulas, for cos 2u and sin 2u. These identities can also be derived using De Moivres theorem. Work Exercises 5962 in order , to see how this is done. Expand the left side of the equation in Exercise 59 as a binomial and combine like terms to write the left side in the form a + bi.
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