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2.4 Sum and Difference Formulas - Problem Check-in

Authored by Lindsay Boritz

Mathematics

12th Grade

CCSS covered

Used 4+ times

2.4 Sum and Difference Formulas - Problem Check-in
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9 questions

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1.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

cos (A - B)= (leave no spaces in answer)

Tags

CCSS.HSF.TF.C.9

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

A
B
C
D

Tags

CCSS.HSF.TF.C.9

3.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

Fill in the rest after the plus sign (no spaces):

sin(A+B)=sinAcosB +

Tags

CCSS.HSF.TF.C.9

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If  sinα=513\sin\alpha=\frac{5}{13}  and  cosβ=45\cos\beta=\frac{4}{5}  (both in QI), then find  sin(αβ)\sin\left(\alpha-\beta\right)  

 1665\frac{16}{65}  

 1665-\frac{16}{65}  

 6516\frac{65}{16}  

 6516-\frac{65}{16}  

Tags

CCSS.HSF.TF.C.9

5.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

sin (A - B) = (leave no spaces when typing answer)

Tags

CCSS.HSF.TF.C.9

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Find the exact value.
cos (5π/18 - π/9)

√(3)/2
1/4
1/2
1

Tags

CCSS.HSF.TF.C.9

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Tags

CCSS.HSF.TF.C.9

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