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. $$49^{\circ}$$
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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. $$-150^{\circ}$$
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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. $$\sec ^{-1} 2.5$$
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Problem 57
Convert each angle from degrees to radians. $$-270^{\circ}$$
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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