Chapter 10

Algebra 2 and Trigonometry · 179 exercises

Problem 10

For each function value, write the value or tell why it is undefined. Do not use a calculator. \(\cot \pi\)

4 step solution

Problem 10

In \(3-12\) , find the exact function value of each of the following if the measure of the angle is given in radians. $$ \sec \frac{\pi}{3} $$

3 step solution

Problem 10

In \(3-12,\) find the radian measure of each angle whose degree measure is given. \(240^{\circ}\)

5 step solution

Problem 11

In \(3-14,\) find each value of \(\theta : \mathbf{a} .\) in degrees \(\mathbf{b} .\) in radians $$ \theta=\arccos (-1) $$

5 step solution

Problem 11

In \(3-22 :\) a. Rewrite each function value in terms of its cofunction. b. Find, to four decimal places, the value of the function value found in a. $$ \sin 110^{\circ} $$

2 step solution

Problem 11

In \(3-14,\) for each given function value, find the remaining five trigonometric function values. \(\cot \theta=\frac{5}{3}\) and \(\theta\) is in the third quadrant.

4 step solution

Problem 11

For each function value, write the value or tell why it is undefined. Do not use a calculator. \(\sec \frac{3 \pi}{2}\)

4 step solution

Problem 11

In \(3-12\) , find the exact function value of each of the following if the measure of the angle is given in radians. $$ \csc \pi $$

4 step solution

Problem 11

In \(3-12,\) find the radian measure of each angle whose degree measure is given. \(270^{\circ}\)

6 step solution

Problem 12

In \(3-22 :\) a. Rewrite each function value in terms of its cofunction. b. Find, to four decimal places, the value of the function value found in a. $$ \tan 95^{\circ} $$

3 step solution

Problem 12

In \(3-14,\) find each value of \(\theta : \mathbf{a} .\) in degrees \(\mathbf{b} .\) in radians $$ \theta=\arcsin 1 $$

3 step solution

Problem 12

In \(3-14,\) for each given function value, find the remaining five trigonometric function values. \(\csc \theta=\frac{5}{4}\) and \(\theta\) is in the second quadrant.

4 step solution

Problem 12

For each function value, write the value or tell why it is undefined. Do not use a calculator. \(\csc \frac{7 \pi}{2}\)

5 step solution

Problem 12

In \(3-12\) , find the exact function value of each of the following if the measure of the angle is given in radians. $$ \cot \frac{\pi}{4} $$

3 step solution

Problem 12

In \(3-12,\) find the radian measure of each angle whose degree measure is given. \(330^{\circ}\)

5 step solution

Problem 13

In \(3-22 :\) a. Rewrite each function value in terms of its cofunction. b. Find, to four decimal places, the value of the function value found in a. $$ \cos 130^{\circ} $$

4 step solution

Problem 13

In \(3-14,\) find each value of \(\theta : \mathbf{a} .\) in degrees \(\mathbf{b} .\) in radians $$ \theta=\arctan 0 $$

3 step solution

Problem 13

For each function value, write the value or tell why it is undefined. Do not use a calculator. \(\tan 0\)

4 step solution

Problem 13

In \(13-24,\) find, to the nearest ten-thousandth, the radian measure \(\theta\) of a first-quadrant angle with the given function value. $$ \sin \theta=0.2736 $$

5 step solution

Problem 13

In \(13-22\) , find the degree measure of each angle whose radian measure is given. \(\frac{\pi}{3}\)

5 step solution

Problem 14

In \(3-22 :\) a. Rewrite each function value in terms of its cofunction. b. Find, to four decimal places, the value of the function value found in a. $$ \sec 125^{\circ} $$

4 step solution

Problem 14

In \(3-14,\) find each value of \(\theta : \mathbf{a} .\) in degrees \(\mathbf{b} .\) in radians $$ \theta=\arccos 0 $$

4 step solution

Problem 14

For each function value, write the value or tell why it is undefined. Do not use a calculator. \(\cot 0\)

4 step solution

Problem 14

In \(13-24,\) find, to the nearest ten-thousandth, the radian measure \(\theta\) of a first-quadrant angle with the given function value. $$ \cos \theta=0.5379 $$

5 step solution

Problem 14

In \(13-22\) , find the degree measure of each angle whose radian measure is given. \(\frac{\pi}{9}\)

5 step solution

Problem 15

In \(3-22 :\) a. Rewrite each function value in terms of its cofunction. b. Find, to four decimal places, the value of the function value found in a. $$ \sin 230^{\circ} $$

4 step solution

Problem 15

In \(15-23,\) use a calculator to find each value of \(\theta\) to the nearest degree. $$ \theta=\arcsin 0.6 $$

3 step solution

Problem 15

In \(15-22,\) write each given expression in terms of sine and cosine and express the result in simplest form. \((\csc \theta)(\sin \theta)\)

2 step solution

Problem 15

For each function value, write the value or tell why it is undefined. Do not use a calculator. \(\tan \left(-\frac{\pi}{2}\right)\)

4 step solution

Problem 15

In \(13-24,\) find, to the nearest ten-thousandth, the radian measure \(\theta\) of a first-quadrant angle with the given function value. $$ \tan \theta=3.726 $$

3 step solution

Problem 15

In \(13-22\) , find the degree measure of each angle whose radian measure is given. \(\frac{\pi}{10}\)

4 step solution

Problem 16

In \(3-22 :\) a. Rewrite each function value in terms of its cofunction. b. Find, to four decimal places, the value of the function value found in a. $$ \cos 255^{\circ} $$

6 step solution

Problem 16

In \(15-23,\) use a calculator to find each value of \(\theta\) to the nearest degree. $$ \theta=\arccos (-0.6) $$

4 step solution

Problem 16

In \(15-22,\) write each given expression in terms of sine and cosine and express the result in simplest form. \((\sin \theta)(\cot \theta)\)

3 step solution

Problem 16

For each function value, write the value or tell why it is undefined. Do not use a calculator. \(\csc \left(-\frac{9 \pi}{2}\right)\)

4 step solution

Problem 16

In \(13-24,\) find, to the nearest ten-thousandth, the radian measure \(\theta\) of a first-quadrant angle with the given function value. $$ \cos \theta=0.9389 $$

5 step solution

Problem 16

In \(13-22\) , find the degree measure of each angle whose radian measure is given. \(\frac{2 \pi}{5}\)

5 step solution

Problem 17

In \(3-22 :\) a. Rewrite each function value in terms of its cofunction. b. Find, to four decimal places, the value of the function value found in a. $$ \tan 237^{\circ} $$

5 step solution

Problem 17

In \(15-23,\) use a calculator to find each value of \(\theta\) to the nearest degree. $$ \theta=\arctan 4.4 $$

3 step solution

Problem 17

In \(15-22,\) write each given expression in terms of sine and cosine and express the result in simplest form. \((\tan \theta)(\cos \theta)\)

4 step solution

Problem 17

For each function value, write the value or tell why it is undefined. Do not use a calculator. \(\sec \left(-\frac{9 \pi}{2}\right)\)

4 step solution

Problem 17

In \(13-24,\) find, to the nearest ten-thousandth, the radian measure \(\theta\) of a first-quadrant angle with the given function value. $$ \sin \theta=0.8267 $$

5 step solution

Problem 17

In \(13-22\) , find the degree measure of each angle whose radian measure is given. \(\frac{10 \pi}{9}\)

4 step solution

Problem 18

In \(3-22 :\) a. Rewrite each function value in terms of its cofunction. b. Find, to four decimal places, the value of the function value found in a. $$ \csc 266^{\circ} $$

4 step solution

Problem 18

In \(15-23,\) use a calculator to find each value of \(\theta\) to the nearest degree. $$ \theta=\arctan (-4.4) $$

3 step solution

Problem 18

In \(15-22,\) write each given expression in terms of sine and cosine and express the result in simplest form. \((\sec \theta)(\cot \theta)\)

4 step solution

Problem 18

For each function value, write the value or tell why it is undefined. Do not use a calculator. \(\cot (-8 \pi)\)

3 step solution

Problem 18

In \(13-24,\) find, to the nearest ten-thousandth, the radian measure \(\theta\) of a first-quadrant angle with the given function value. $$ \cos \theta=0.8267 $$

4 step solution

Problem 18

In \(13-22\) , find the degree measure of each angle whose radian measure is given. \(\frac{3 \pi}{2}\)

5 step solution

Problem 19

In \(3-22 :\) a. Rewrite each function value in terms of its cofunction. b. Find, to four decimal places, the value of the function value found in a. $$ \cos 300^{\circ} $$

5 step solution

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