Chapter 5

Precalculus : Building Concepts and Connections · 447 exercises

Problem 49

Use a scientific calculator to evaluate the giren trigonometric functions to four decimal places. $$\tan (-0.5)$$

3 step solution

Problem 49

Find a cofunction that has the same value as the given quantity. $$\sec 47^{\circ}$$

3 step solution

Problem 50

This set of exercises will draw on the ideas presented in this section and your general math background. What are the domain and range of the function \(f(x)=\sec 3 x-1 ?\)

3 step solution

Problem 50

Find the exact values of the given expressions in radian measure. $$\csc ^{-1} \frac{2 \sqrt{3}}{3}$$

3 step solution

Problem 50

Find the angle that is supplementary to it. $$49^{\circ}$$

3 step solution

Problem 50

Use a scientific calculator to evaluate the giren trigonometric functions to four decimal places. $$\tan (-1.5)$$

3 step solution

Problem 50

Find a cofunction that has the same value as the given quantity. $$\csc 31^{\circ}$$

3 step solution

Problem 51

This set of exercises will draw on the ideas presented in this section and your general math background. What are the vertical asymptotes of the graph of \(f(x)=\tan x+\cot x ?\)

3 step solution

Problem 51

Find the exact values of the given expressions in radian measure. $$\sec ^{-1}\left(-\frac{2 \sqrt{3}}{3}\right)$$

3 step solution

Problem 51

Convert each angle from degrees to radians. $$240^{\circ}$$

2 step solution

Problem 51

Use a scientific calculator to evaluate the giren trigonometric functions to four decimal places. $$\csc \frac{7 \pi}{5}$$

3 step solution

Problem 51

Find a cofunction that has the same value as the given quantity. $$\cot 67^{\circ}$$

2 step solution

Problem 52

Find the exact values of the given expressions in radian measure. $$\sec ^{-1}(-\sqrt{2})$$

3 step solution

Problem 52

Convert each angle from degrees to radians. $$210^{\circ}$$

3 step solution

Problem 52

Use a scientific calculator to evaluate the giren trigonometric functions to four decimal places. $$ \sec \frac{4 \pi}{5} $$

4 step solution

Problem 52

Find a cofunction that has the same value as the given quantity. $$\cot 72^{\circ}$$

3 step solution

Problem 53

Find the exact values of the given expressions in radian measure. $$\csc ^{-1}(-2)$$

3 step solution

Problem 53

Convert each angle from degrees to radians. $$-150^{\circ}$$

3 step solution

Problem 53

Use a scientific calculator to evaluate the giren trigonometric functions to four decimal places. $$\sec (3.2)$$

3 step solution

Problem 54

Find the exact values of the given expressions in radian measure. $$\sec ^{-1}(-2)$$

3 step solution

Problem 54

Convert each angle from degrees to radians. $$-225^{\circ}$$

3 step solution

Problem 54

Use a scientific calculator to evaluate the giren trigonometric functions to four decimal places. $$\cot (2.7)$$

2 step solution

Problem 55

Find the exact values of the given expressions in radian measure. $$\cot ^{-1} \sqrt{3}$$

3 step solution

Problem 55

Convert each angle from degrees to radians. $$270^{\circ}$$

3 step solution

Problem 55

Use a scientific calculator to evaluate the giren trigonometric functions to four decimal places. $$\cot 215^{\circ}$$

3 step solution

Problem 56

Find the exact values of the given expressions in radian measure. $$\cot ^{-1}(-1)$$

2 step solution

Problem 56

Convert each angle from degrees to radians. $$300^{\circ}$$

3 step solution

Problem 56

Use a scientific calculator to evaluate the giren trigonometric functions to four decimal places. $$\sin 107^{\circ}$$

3 step solution

Problem 57

Evaluate the given expressions to four decimal places with a calculator. $$\sec ^{-1} 2.5$$

3 step solution

Problem 57

Convert each angle from degrees to radians. $$-270^{\circ}$$

3 step solution

Problem 57

Use a scientific calculator to evaluate the giren trigonometric functions to four decimal places. $$\tan \left(-38^{\circ}\right)$$

3 step solution

Problem 58

Evaluate the given expressions to four decimal places with a calculator. $$\csc ^{-1} 5$$

4 step solution

Problem 58

Convert each angle from degrees to radians. $$-180^{\circ}$$

3 step solution

Problem 58

In Exercises \(39-60,\) use a scientific calculator to evaluate the given trigonometric functions to four decimal places. $$ \cot \left(-217^{\circ}\right) $$

3 step solution

Problem 59

Evaluate the given expressions to four decimal places with a calculator. $$\csc ^{-1}(-3.6)$$

4 step solution

Problem 59

Convert each angle from degrees to radians. $$720^{\circ}$$

3 step solution

Problem 59

Use a scientific calculator to evaluate the giren trigonometric functions to four decimal places. $$\sec \left(410^{\circ}\right)$$

3 step solution

Problem 59

Find the measure of the acute angle \(\theta\) for which the sine or cosine is given. $$\sin \theta=\frac{1}{2}$$

2 step solution

Problem 60

Evaluate the given expressions to four decimal places with a calculator. $$\sec ^{-1}(-4.2)$$

3 step solution

Problem 60

Convert each angle from degrees to radians. $$540^{\circ}$$

2 step solution

Problem 60

Use a scientific calculator to evaluate the giren trigonometric functions to four decimal places. $$\csc \left(440^{\circ}\right)$$

3 step solution

Problem 60

Find the measure of the acute angle \(\theta\) for which the sine or cosine is given. $$\cos \theta=\frac{\sqrt{3}}{2}$$

3 step solution

Problem 61

$$\cot ^{-1} 2.4$$

2 step solution

Problem 61

Convert each angle from degrees to radians. $$390^{\circ}$$

3 step solution

Problem 61

The position \(d\) of a block that is attached to a spring is given by the formula \(d=7 \cos \frac{\pi}{2} t\) where \(t\) is in seconds. Find \(d\) when \(t=\frac{1}{2}\) and when \(t=4\).

3 step solution

Problem 61

Find the measure of the acute angle \(\theta\) for which the sine or cosine is given. $$\cos \theta=\frac{\sqrt{2}}{2}$$

3 step solution

Problem 62

Evaluate the given expressions to four decimal places with a calculator. $$\cot ^{-1} 3.6$$

3 step solution

Problem 62

Convert each angle from degrees to radians. $$-405^{\circ}$$

3 step solution

Problem 62

Fill in the given table with the missing information. Approximate all nonexact anstoers to four decimal places. $$\begin{array}{|c|c|c|c|c|} \hline \text { Quadrant } & \sin t & \cos t & \tan t \\ \hline IV & & \frac{1}{2} & \\ \hline \end{array}$$

3 step solution

Problem 62

The position \(d\) of a block that is attached to a spring is given by the formula \(d=5 \sin \frac{\pi}{4} t\) where \(t\) is in seconds. What is the maximum distance of the block from its equilibrium position (the position at which \(d=0\) )? Find the period of the motion.

3 step solution

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