Half Angle and Double Angle
Authored by Anthony Clark
Mathematics
10th Grade
CCSS covered
Used 1+ times
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19 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Use a double-angle or half-angle identity to find the exact value of each expression
cos θ = 4/5 and 270° < θ < 360°Find sin 2θ
-1/5
24/25
-24/25
-25/24
Tags
CCSS.HSF.TF.C.9
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Use a double-angle or half-angle identity to find the exact value of each expression
cos θ = 4/5 and 270° < θ < 360°Find sin 2θ
-1/5
24/25
-24/25
-25/24
Tags
CCSS.HSF.TF.C.9
3.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Use a double-angle or half-angle identity to find the exact value of each expression
sin θ = −3/5 and 3π/2 < θ < 2π Find tan θ/2
-1/3
-√3
√3/3
-1
Tags
CCSS.HSF.TF.C.9
4.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Use a double-angle identity to find the exact value of each expression
cos θ = 4/5 and 270° < θ < 360°
Find sin 2θ
-1/5
24/25
-24/25
-25/24
Tags
CCSS.HSF.TF.C.9
5.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Find the exact value of sin 2x if sin x = 12/13 and x is in the first quadrant.
120/169
25/169
60/169
5/13
Tags
CCSS.HSF.TF.C.9
6.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Use the information about the angle θ, 0≤θ<2π to find the exact value of
sin (2θ)
sin θ= 3/5 , 0<θ<π/2
24/7
7/25
24/25
1/2
Tags
CCSS.HSF.TF.C.9
7.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
sin2u =
(sinu)(cosu)
2(sinu)(cosu)
(sinu)^2
2(sinu)^2
Tags
CCSS.HSF.TF.C.9
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