TEKS.MATH.9-12.III.A.3

For what angles are sine and cosine the same?

• 0^o
• 45^o and 135⁰
• 45^o and 225⁰
• 45^o and 315⁰

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TEKS.MATH.9-12.III.A.3

Find Cos(A) as a decimal rounded the the nearest ten-thousandth.

• .4706
• 1.875
• .8824
• .5333

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TEKS.MATH.9-12.III.A.3

What is the value of x?

• 6 < x < 30
• 21.63
• 13.42
• 30 < x < 6

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TEKS.MATH.9-12.III.A.3

Find m∠1.

• 62
• 28
• 90
• 78

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TEKS.MATH.9-12.III.A.3

Do these 3 side lengths form a right triangle?
13, 80, and 81?

• yes
• no

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TEKS.MATH.9-12.III.A.3

What would you use to solve for x?

• Pythagorean Theorem
• Trig
• Inverse Trig

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TEKS.MATH.9-12.III.A.3

On the unit circle, which radian measure represents the point (^√3/₂ , -¹/₂)

• ^11π/₆

• ^5π/₃

• ^7π/₆

• ^4π/₃

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TEKS.MATH.9-12.III.A.3

Tan =

• opposite / adjacent

• opposite / hypotenuse

• adjacent / opposite

• adjacent / hypotenuse

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TEKS.MATH.9-12.III.A.3

Based on your unit circle cos(270^o)=

• 1

• 0

• -1

• 1/2

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TEKS.MATH.9-12.III.A.3

Sin²x = ...

• cosx - 1

• cos²x-1

• 1-cos²x

• 1 - cosx

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TEKS.MATH.9-12.III.A.3