
Simplify Trig Expressions Using Sum and Difference Identities
Authored by Barbara White
Mathematics
11th - 12th Grade
CCSS covered

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18 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Write the following expression as the sine, cosine, or tangent of an angle.
cos(175)cos(55)+sin(175)sin(55)
Tags
CCSS.HSF.TF.C.9
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
solve
cos(π/3)cos(2π/3)-sin(π/3)cos(2π/3)
Tags
CCSS.HSF.TF.C.9
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Please choose the correct sum and difference formula:
sin (α-β) =
Tags
CCSS.HSF.TF.C.9
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Please choose the correct sum and difference formula:
cos (α+β) =
Tags
CCSS.HSF.TF.C.9
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Please choose the correct sum and difference formula:
cos (α-β) =
Tags
CCSS.HSF.TF.C.9
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Please choose the correct sum and difference formula:
tan (α+β) =
Tags
CCSS.HSF.TF.C.9
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Please choose the correct sum and difference formula:
sin (α+β) =
Tags
CCSS.HSF.TF.C.9
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