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Revision topic 3 Trigonometry and trigonometric functions Flashcards | StudBud
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Revision topic 3 Trigonometry and trigonometric functions
Revision topic 3 Trigonometry and trigonometric functions
12 terms
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StudBud Administration
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IB maths SL trigonometry
Flashcards
12 cards
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Practice quiz
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Questions
12
Answers
1
Which expression is
not
identical to cos(2x)?
2cos2(x) - 1
cos2x - sin2x
1 - 2sin2(x)
sin2x - cos2x
2
Solve for sin(x) : 1 - cos
2
x - 3sin(x) + 2 = 0
sin(x) = 0.5
sin(x) = - 1 or sin(x) = - 2
sin(x) = - 1 or sin(x) = 2
sin(x) = 1 or sin(x) = 2
3
Find tan(225°)
√3
1
- √3 / 3
- 1 / 2
4
Find cos(3π/4)
√3 / 2
1/2
-1/2
- √2 / 2
5
Find 120° in radians
3π/4
π
2π/3
2
6
Find the length of the arc ACB
15π
30π
30
15
7
Find sin(π/3)
1
√3 / 2
√2 / 2
1/2
8
Solve cos(2x) = 1/2 , 0 ≤ x ≤ π
π/3
π/6
π/4
0
9
Find the value of cos (x)
√(8/3)
8/9
√(8/9)
2/3
10
Find the number of solutions to cos(x) = 0.6 , 0≤x≤π
0
3
1
2
11
Find the equation of the line
y = xcos(θ)
y = xtan(θ)
y = xsin(θ)
y = θx
12
Find the area of the sector OAB
180 cm2
60 cm2
225 cm2
30 cm2
