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Circular Functions and Trigonometry Flashcards | StudBud
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Circular Functions and Trigonometry
Circular Functions and Trigonometry
7 terms
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A #MathSL #IB #Quiz .
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7 cards
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1
Why is the equation cos(2θ) = 1 - 2sin2θ an identity? Because...
It is true for only negative values of θ
It is true for θ 90°-180°
It is true for all values of θ
It is not true for all values of θ
2
Define tanθ
3sinθ+2cosθ
sinθ/cosθ
sinθ-1 x cosθ+2
2sinθ/cosθ+1
3
What are the double angle identities for Cosine (cos(2θ)) ?
1-2sin2θ
cos2θ-sin2θ
tanθ-1
2cos2θ-1
4
Give the radian measure of a full circle (360 degrees).
2 radian
2π
360 radian
2π radian
5
What is the equation of a straight line through the origin ?
y = x tanθ
y = x sinθ
y = x
y = x cosθ
6
Find x and H in the right triangle below.
x = 5 , H =15
x = 7.6 , H = 12.5
x = 8.5 , H = 12
x = 8.1 , H = 13
7
The double-angle identity for sine (sin(2θ)) is...
sin(θ)-cos(θ)
sin(θ)cos(θ)
sin(θ)cos(θ)-2
2sin(θ)cos(θ)
