Use the sum to product identities to rewrite the following expression in terms containing only...
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Algebra
Use the sum to product identities to rewrite the following expression in terms containing only first powers of tangent Answer sin9x sin5x cos9x cos5x
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To rewrite the given expression using sumtoproduct identities we start with the expression fracsin 9x sin 5xcos 9x cos 5x Step 1 Apply SumtoProduct Identities The sumtoproduct identities
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