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No Calculators! - Revision topic 3 Circular functions and trigonometry Flashcards | StudBud
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No Calculators! - Revision topic 3 Circular functions and trigonometry
No Calculators! - Revision topic 3 Circular functions and trigonometry
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IB maths SL trigonometry
Flashcards
11 cards
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Questions
11
Answers
1
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
2
Find the area of the sector OAB
180 cm2
30 cm2
225 cm2
60 cm2
3
Solve cos(2x) = 1/2 , 0 ≤ x ≤ π
0
π/6
π/4
π/3
4
Which expression is
not
identical to cos(2x)?
2cos2(x) - 1
1 - 2sin2(x)
cos2x - sin2x
sin2x - cos2x
5
Find the number of solutions to cos(x) = 0.6 , 0≤x≤π
0
2
3
1
6
Find the length of the arc ACB
30
15
30π
15π
7
Find sin(π/3)
1
√2 / 2
√3 / 2
1/2
8
Find 120° in radians
2π/3
3π/4
2
π
9
Find cos(3π/4)
- √2 / 2
-1/2
1/2
√3 / 2
10
Find tan(225°)
- 1 / 2
1
- √3 / 3
√3
11
Find the value of cos (x)
8/9
√(8/3)
√(8/9)
2/3
