Sum and Difference of Identities
Authored by Anthony Clark
Mathematics
12th Grade
CCSS covered
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19 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tags
CCSS.HSF.TF.C.9
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tags
CCSS.HSF.TF.C.9
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Write the following expression as the sine, cosine, or tangent of an angle.
cos(175)cos(55)+sin(175)sin(55)
sin(120)
cos(120)
cos(230)
sin(230)
Tags
CCSS.HSF.TF.C.9
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Please choose the correct sum and difference formula:
cos (α-β) =
sin α cos β + cos α sin β
sin α cos β - cos α sin β
cos α cos β - sin α sin β
cos α cos β + sin α sin β
Tags
CCSS.HSF.TF.C.9
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Use Sum or Difference Identities to find the exact value of each expression.
cos(75°)
1/4
√6/4 - √2 / 4
√6 + √2 / 4
-√6/4 - √2 / 4
Tags
CCSS.HSF.TF.C.9
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the exact value of the expression.
sin(5π/12)cos(π/4) - cos(5π/12)sin(π/4)
1/2
-1/2
-√(2)/2
√(3)/2
Tags
CCSS.HSF.TF.C.9
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