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

tan (-π)

• undefined
• 0
• 1
• -1

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

What is the length of side x?

• 6.57 cm
• 7 cm
• 7.44 cm
• 26.33 cm

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

What is the exact value of cos 315°

• -√2/2
• √2/2
• 1/2
• √3/2

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

Which of these is not the same?

• sin^-1 (0)
• cos^-1 (1)
• tan^-1(1)
• sec^-1(1)

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

Determine y.

• 30
• 60
• 90
• 180

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

An observer stands 2400 ft away from a launch pad to observe a rocket launch. The rocket blasts off and maintains a velocity of 200 ft/sec. Assume the scenario can be modeled as a right triangle. How fast is the observer to rocket distance changing when the rocket is 700 ft from the ground?

• 56 ft/sec

• 57 ft/sec

• 52 ft/sec

• 61 ft/sec

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

Solve for the missing variable.

• 255°

• 90°

• 60°

• 105°

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

What is  $\cos\left(\frac{5\pi}{6}\right)$  ?

• $-\frac{1}{2}$

• $\frac{1}{2}$

• $\frac{\sqrt{3}}{2}$

• $-\frac{\sqrt{3}}{2}$

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

Use the fundamental identities to simplify the expression.

• $\sin\left(\theta\right)$

• $\cos\left(\theta\right)$

• $\tan\left(\theta\right)$

• $\csc\left(\theta\right)$

• $\cot\left(\theta\right)$

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

What is the distance across the river? The two sides are 4.15 miles and 5.33 miles. The included angle measure is 37 degrees.

• 2.9 miles

• 3.2 miles

• 3.6 miles

• 3.9 miles

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