Trigonometry of Sums and Differences of Angles HSF.TF.C.9 Grade 11 SBAC Practice Test Questions TOC | Lumos Learning

Trigonometry of Sums and Differences of Angles HSF.TF.C.9 Question & Answer Key Resources Lumos StepUp - Smarter Balanced Online Practice and Assessments - Grade 11 Mathematics

Lumos StepUp - Smarter Balanced Online Practice and Assessments - Grade 11 Mathematics Trigonometry of Sums and Differences of Angles

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Use sum and difference identities to evaluate \(cos 75{}^\circ\). Leave answers in exact form.

Resource: Question

Question Type: Multiple Choice - Single Answer

Standard(s):HSF.TF.C.9

Standard Description: Prove the addition and subtraction formulas for sine, cosine, and tangent and use them to solve problems.

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