Sum and Difference Formulas

Flashcard
•
Mathematics
•
12th Grade
•
Hard
Standards-aligned
Wayground Content
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7 questions
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1.
FLASHCARD QUESTION
Front
What is the cosine of the sum of two angles formula?
Back
cos(A + B) = cos(A)cos(B) - sin(A)sin(B)
Tags
CCSS.HSF.TF.C.9
2.
FLASHCARD QUESTION
Front
What is the sine of the sum of two angles formula?
Back
sin(A + B) = sin(A)cos(B) + cos(A)sin(B)
Tags
CCSS.HSF.TF.C.9
3.
FLASHCARD QUESTION
Front
What is the tangent of the sum of two angles formula?
Back
tan(A + B) = (tan(A) + tan(B)) / (1 - tan(A)tan(B))
Tags
CCSS.HSF.TF.C.9
4.
FLASHCARD QUESTION
Front
What is the cosine of the difference of two angles formula?
Back
cos(A - B) = cos(A)cos(B) + sin(A)sin(B)
Tags
CCSS.HSF.TF.C.9
5.
FLASHCARD QUESTION
Front
What is the sine of the difference of two angles formula?
Back
sin(A - B) = sin(A)cos(B) - cos(A)sin(B)
Tags
CCSS.HSF.TF.C.9
6.
FLASHCARD QUESTION
Front
What is the tangent of the difference of two angles formula?
Back
tan(A - B) = (tan(A) - tan(B)) / (1 + tan(A)tan(B))
Tags
CCSS.HSF.TF.C.9
7.
FLASHCARD QUESTION
Front
How can you express cos(175)cos(55) + sin(175)sin(55) using a sum formula?
Back
cos(175)cos(55) + sin(175)sin(55) = cos(175 - 55) = cos(120)
Tags
CCSS.HSF.TF.C.9
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