Use the Cofunction Identities to Evaluate the Expression Below Without

question 110

Multiple Choice

Use the cofunction identities to evaluate the expression below without using calculator. sin²20° + sin²27° + sin²70° + sin²63°

• A)1
• C)-1
• D)​0

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Data that is duplicated or unnecessarily repeated within a dataset, often resulting in inefficiency.

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A concept in database management that ensures relationships between tables remain consistent and that references are valid.