Question
Asked Dec 16, 2019
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Use an Addition or Subtraction Formula to find the exact value of the expression, as demonstrated in Example 1.
sin(- )
7A
12
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Use an Addition or Subtraction Formula to find the exact value of the expression, as demonstrated in Example 1. sin(- ) 7A 12

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Expert Answer

Step 1

Use sin(-x)= - sin(x)

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sir 12 =-sin 12

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Step 2

Write 7pi/12 as sum o...

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Зл+4л =-sin 12 л л =-sin =-sir 4 3

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