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Laabri

Lesson 4.2 (Sum/Difference/Double)

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Last updated about 3 years ago
6 Nsɛmmisa

Watch the video below until the time 4:39, then answer the questions. Make sure you review the formula sheet at the end before next class! You will have a quiz! Notes from this lesson will be on Canvas, with the solutions to these problems! WORK TOGETHER!!!! THIS IS EASY IF YOU WORK THROUGH IT WITH EACH OTHER!!

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1.

Find the exact value of the expression

hint: rewrite using your double angle identities before you use sum/difference identitites

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2.

Find the exact value of the expression

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3.

Find the exact value of the expression

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5.

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6.

Make sure you have all of your formulas memorized for your formula quiz next class! You will not need to know Half-Angle Formulas