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Mathematics

11th Grade - University

CCSS covered

Used 6+ times

Sum and Difference Identities Review
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Give the exact value of  cos(201°)cos(51°)+sin(201°)sin(51°).\cos\left(201\degree\right)\cos\left(51\degree\right)+\sin\left(201\degree\right)\sin\left(51\degree\right).  

 32\frac{\sqrt{3}}{2}  

 32-\frac{\sqrt{3}}{2}  

 12\frac{1}{2}  

 12-\frac{1}{2}  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Give the exact value of  tan(255).\tan\left(-255\right).  

 23-2-\sqrt{3}  

 3+2-\sqrt{3}+2  

 32\sqrt{3}-2  

 2+32+\sqrt{3}  

Tags

CCSS.HSF.TF.A.3

CCSS.HSF.TF.A.2

CCSS.HSF.TF.A.4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Simplify the expression  tan(θ45).\tan\left(\theta-45\right).  

 tan(θ)11+tan(θ)\frac{\tan\left(\theta\right)-1}{1+\tan\left(\theta\right)}  

 tan(θ)+11+tan(θ)\frac{\tan\left(\theta\right)+1}{1+\tan\left(\theta\right)}  

 tan(θ)-\tan\left(\theta\right)  

 tan(θ)11tan(θ)\frac{\tan\left(\theta\right)-1}{1-\tan\left(\theta\right)}  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the exact value of  cos(255).\cos\left(255\right).  

 2+64\frac{\sqrt{2}+\sqrt{6}}{4}  

 624\frac{-\sqrt{6}-\sqrt{2}}{4}  

 624\frac{\sqrt{6}-\sqrt{2}}{4}  

 264\frac{\sqrt{2}-\sqrt{6}}{4}  

Tags

CCSS.HSF.TF.A.3

CCSS.HSF.TF.C.9

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Give the exact value of  tan(305°)+tan(25°)1tan(305°)tan(25°)\frac{\tan\left(305\degree\right)+\tan\left(25\degree\right)}{1-\tan\left(305\degree\right)\tan\left(25\degree\right)}  .

 3\sqrt{3}  

 3-\sqrt{3}  

 33\frac{\sqrt{3}}{3}  

 33-\frac{\sqrt{3}}{3}  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Give the exact value of  sin(110°)cos(10°)+cos(110°)sin(10°).\sin\left(110\degree\right)\cos\left(10\degree\right)+\cos\left(110\degree\right)\sin\left(10\degree\right).  

 12\frac{1}{2}  

 12-\frac{1}{2}  

 32-\frac{\sqrt{3}}{2}  

 32\frac{\sqrt{3}}{2}  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Simplify the expression  sin(θ270°).\sin\left(\theta-270\degree\right).  

 sin(θ)\sin\left(\theta\right)  

 sin(θ)-\sin\left(\theta\right)  

 cos(θ)-\cos\left(\theta\right)  

 cos(θ)\cos\left(\theta\right)  

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