Precalculus: Mathematics for Calculus - 6th Edition
Precalculus: Mathematics for Calculus - 6th Edition
6th Edition
ISBN: 9780840068071
Author: Stewart, James, Redlin, Lothar, Watson, Saleem
Publisher: Cengage Learning
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Chapter 6.3, Problem 29E
To determine

To calculate: The value of the trigonometric function sec17π3 .

Expert Solution & Answer
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Answer to Problem 29E

The value of the trigonometric function sec17π3 is 2 .

Explanation of Solution

Given information:

The trigonometric function sec17π3 .

Formula used:

Coordinate plane is divided into four quadrants.

In the first quadrant all trigonometric functions that is sinθ,cosθ,tanθ,cscθ,secθ and cotθ are positive.

In the second quadrant only sine and cosecant trigonometric functions that is sinθ and cscθ are positive and remaining cosθ,tanθ,secθ and cotθ are negative.

In the third quadrant only tangent and cotangent trigonometric functions that is tanθ and cotθ are positive and remaining cosθ,sinθ,secθ and cscθ are negative.

In the fourth quadrant only cosine and secant trigonometric functions that is cosθ and secθ are positive and remaining sinθ,tanθ,cscθ and cotθ are negative.

The reference angle θ¯ is the angle associated with the angle θ in the standard position. It is the acute angle that is formed by the terminal side of θ and the x -axis.

Calculation:

Consider the provided trigonometric function sec17π3 .

Denote,

  θ=17π3θ=17π3180πθ=1020 .

First estimate the reference angle θ¯ associated with the angle θ .

From the figure provided below,

  Precalculus: Mathematics for Calculus - 6th Edition, Chapter 6.3, Problem 29E

Since, 1020 and 300 are coterminal, so, the provided angle has terminal side in Quadrant IV .

The reference angle is,

  θ¯=360300=60

Recall that coordinate plane is divided into four quadrants.

In the fourth quadrant only cosine and secant trigonometric functions that is cosθ and secθ are positive and remaining sinθ,tanθ,cscθ and cotθ are negative.

So, secant trigonometric function, sec17π3 is positive.

Therefore,

  sec17π3=secπ3=2

Thus, the value of the trigonometric function sec17π3 is 2 .

Chapter 6 Solutions

Precalculus: Mathematics for Calculus - 6th Edition

Ch. 6.1 - Prob. 11ECh. 6.1 - Prob. 12ECh. 6.1 - Prob. 13ECh. 6.1 - Prob. 14ECh. 6.1 - Prob. 15ECh. 6.1 - Prob. 16ECh. 6.1 - Prob. 17ECh. 6.1 - Prob. 18ECh. 6.1 - Prob. 19ECh. 6.1 - Prob. 20ECh. 6.1 - Prob. 21ECh. 6.1 - Prob. 22ECh. 6.1 - Prob. 23ECh. 6.1 - Prob. 24ECh. 6.1 - Prob. 25ECh. 6.1 - Prob. 26ECh. 6.1 - Prob. 27ECh. 6.1 - Prob. 28ECh. 6.1 - Prob. 29ECh. 6.1 - Prob. 30ECh. 6.1 - Prob. 31ECh. 6.1 - Prob. 32ECh. 6.1 - Prob. 33ECh. 6.1 - Prob. 34ECh. 6.1 - Prob. 35ECh. 6.1 - Prob. 36ECh. 6.1 - Prob. 37ECh. 6.1 - Prob. 38ECh. 6.1 - Prob. 39ECh. 6.1 - Prob. 40ECh. 6.1 - Prob. 41ECh. 6.1 - Prob. 42ECh. 6.1 - Prob. 43ECh. 6.1 - Prob. 44ECh. 6.1 - Prob. 45ECh. 6.1 - Prob. 46ECh. 6.1 - Prob. 47ECh. 6.1 - Prob. 48ECh. 6.1 - Prob. 49ECh. 6.1 - Prob. 50ECh. 6.1 - Prob. 51ECh. 6.1 - Prob. 52ECh. 6.1 - Prob. 53ECh. 6.1 - Prob. 54ECh. 6.1 - Prob. 55ECh. 6.1 - Prob. 56ECh. 6.1 - Prob. 57ECh. 6.1 - Prob. 58ECh. 6.1 - Prob. 59ECh. 6.1 - Prob. 60ECh. 6.1 - Prob. 61ECh. 6.1 - Prob. 62ECh. 6.1 - Prob. 63ECh. 6.1 - 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Conical Cup A conical cup is made from a circular...Ch. 6.1 - Conical Cup In this exercise we find the volume of...Ch. 6.1 - Prob. 89ECh. 6.1 - Prob. 90ECh. 6.2 - A right triangle with an angle is shown in the...Ch. 6.2 - The reciprocal identities state that...Ch. 6.2 - Prob. 3ECh. 6.2 - Prob. 4ECh. 6.2 - Prob. 5ECh. 6.2 - Prob. 6ECh. 6.2 - Prob. 7ECh. 6.2 - Prob. 8ECh. 6.2 - Prob. 9ECh. 6.2 - Prob. 10ECh. 6.2 - Prob. 11ECh. 6.2 - Prob. 12ECh. 6.2 - Prob. 13ECh. 6.2 - Prob. 14ECh. 6.2 - Prob. 15ECh. 6.2 - Prob. 16ECh. 6.2 - Prob. 17ECh. 6.2 - Prob. 18ECh. 6.2 - Prob. 19ECh. 6.2 - Prob. 20ECh. 6.2 - Prob. 21ECh. 6.2 - Prob. 22ECh. 6.2 - Prob. 23ECh. 6.2 - Prob. 24ECh. 6.2 - Prob. 25ECh. 6.2 - Prob. 26ECh. 6.2 - Prob. 27ECh. 6.2 - Prob. 28ECh. 6.2 - Prob. 29ECh. 6.2 - Prob. 30ECh. 6.2 - Prob. 31ECh. 6.2 - Prob. 32ECh. 6.2 - Prob. 33ECh. 6.2 - Prob. 34ECh. 6.2 - Prob. 35ECh. 6.2 - Prob. 36ECh. 6.2 - Prob. 37ECh. 6.2 - Prob. 38ECh. 6.2 - Prob. 39ECh. 6.2 - Prob. 40ECh. 6.2 - Prob. 41ECh. 6.2 - Prob. 42ECh. 6.2 - Prob. 43ECh. 6.2 - Prob. 44ECh. 6.2 - Prob. 45ECh. 6.2 - Prob. 46ECh. 6.2 - Height of a Building The angle of elevation to the...Ch. 6.2 - Gateway Arch A plane is flying within sight of the...Ch. 6.2 - Deviation of a Laser Beam A laser beam is to be...Ch. 6.2 - Distance at Sea From the top of a 200-ft...Ch. 6.2 - Leaning Ladder A 20-ft ladder leans against a...Ch. 6.2 - Prob. 52ECh. 6.2 - Elevation of a Kite A man is lying on the beach,...Ch. 6.2 - Determining a Distance A woman standing on a hill...Ch. 6.2 - Height of a Tower A water tower is located 325 ft...Ch. 6.2 - Prob. 56ECh. 6.2 - Determining a Distance If both cars in Exercise 62...Ch. 6.2 - Height of a Balloon A hot-air balloon is floating...Ch. 6.2 - Height of a Mountain To estimate the height of a...Ch. 6.2 - Height of Cloud Cover To measure the height of the...Ch. 6.2 - Distance to the Sun When the moon is exactly half...Ch. 6.2 - Distance to the Moon To find the distance to the...Ch. 6.2 - Prob. 63ECh. 6.2 - Parallax To find the distance to nearby stars, the...Ch. 6.2 - Prob. 65ECh. 6.2 - Prob. 66ECh. 6.3 - If the angle is in standard position and P(x, y)...Ch. 6.3 - The sign of a trigonometric function of depends...Ch. 6.3 - Prob. 3ECh. 6.3 - Prob. 4ECh. 6.3 - Prob. 5ECh. 6.3 - Prob. 6ECh. 6.3 - Prob. 7ECh. 6.3 - Prob. 8ECh. 6.3 - Prob. 9ECh. 6.3 - Prob. 10ECh. 6.3 - Prob. 11ECh. 6.3 - Prob. 12ECh. 6.3 - Prob. 13ECh. 6.3 - Prob. 14ECh. 6.3 - Prob. 15ECh. 6.3 - Prob. 16ECh. 6.3 - Prob. 17ECh. 6.3 - Prob. 18ECh. 6.3 - Prob. 19ECh. 6.3 - Prob. 20ECh. 6.3 - Prob. 21ECh. 6.3 - Prob. 22ECh. 6.3 - Prob. 23ECh. 6.3 - Prob. 24ECh. 6.3 - Prob. 25ECh. 6.3 - Prob. 26ECh. 6.3 - Prob. 27ECh. 6.3 - Prob. 28ECh. 6.3 - Prob. 29ECh. 6.3 - Prob. 30ECh. 6.3 - Prob. 31ECh. 6.3 - Prob. 32ECh. 6.3 - Prob. 33ECh. 6.3 - Prob. 34ECh. 6.3 - Prob. 35ECh. 6.3 - Prob. 36ECh. 6.3 - Prob. 37ECh. 6.3 - Prob. 38ECh. 6.3 - Prob. 39ECh. 6.3 - Prob. 40ECh. 6.3 - Prob. 41ECh. 6.3 - Prob. 42ECh. 6.3 - Prob. 43ECh. 6.3 - Prob. 44ECh. 6.3 - 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Prob. 2ECh. 6.5 - Prob. 3ECh. 6.5 - Prob. 4ECh. 6.5 - Prob. 5ECh. 6.5 - Prob. 6ECh. 6.5 - Prob. 7ECh. 6.5 - Prob. 8ECh. 6.5 - Prob. 9ECh. 6.5 - Prob. 10ECh. 6.5 - Prob. 11ECh. 6.5 - Prob. 12ECh. 6.5 - Prob. 13ECh. 6.5 - Prob. 14ECh. 6.5 - Prob. 15ECh. 6.5 - Prob. 16ECh. 6.5 - Prob. 17ECh. 6.5 - Prob. 18ECh. 6.5 - Prob. 19ECh. 6.5 - Prob. 20ECh. 6.5 - Prob. 21ECh. 6.5 - Prob. 22ECh. 6.5 - Prob. 23ECh. 6.5 - Prob. 24ECh. 6.5 - Prob. 25ECh. 6.5 - Prob. 26ECh. 6.5 - Prob. 27ECh. 6.5 - Prob. 28ECh. 6.5 - Prob. 29ECh. 6.5 - Prob. 30ECh. 6.5 - Prob. 31ECh. 6.5 - Prob. 32ECh. 6.5 - Tracking a Satellite The path of a satellite...Ch. 6.5 - Flight of a Plane A pilot is flying over a...Ch. 6.5 - Prob. 35ECh. 6.5 - Distance Across a Lake Points A and B are...Ch. 6.5 - The Leaning Tower of Pisa The bell lower of the...Ch. 6.5 - Radio Antenna A short-wave radio antenna is...Ch. 6.5 - Height of a Tree A tree on a hillside casts a...Ch. 6.5 - Length of a Guy Wire A communications tower is...Ch. 6.5 - Calculating a Distance Observers at P and Q are...Ch. 6.5 - Calculating an Angle A water tower 30 m tall is...Ch. 6.5 - Distances to Venus The elongation of a planet is...Ch. 6.5 - Soap Bubbles When two bubbles cling together in...Ch. 6.5 - Prob. 45ECh. 6.6 - For triangle ABC with sides a, b, and c the Law of...Ch. 6.6 - In which of the following cases must the Law of...Ch. 6.6 - Prob. 3ECh. 6.6 - Prob. 4ECh. 6.6 - Prob. 5ECh. 6.6 - Prob. 6ECh. 6.6 - Prob. 7ECh. 6.6 - Prob. 8ECh. 6.6 - Prob. 9ECh. 6.6 - Prob. 10ECh. 6.6 - Prob. 11ECh. 6.6 - Prob. 12ECh. 6.6 - Prob. 13ECh. 6.6 - Prob. 14ECh. 6.6 - Prob. 15ECh. 6.6 - Prob. 16ECh. 6.6 - Prob. 17ECh. 6.6 - Prob. 18ECh. 6.6 - Prob. 19ECh. 6.6 - Prob. 20ECh. 6.6 - Prob. 21ECh. 6.6 - Prob. 22ECh. 6.6 - Prob. 23ECh. 6.6 - Prob. 24ECh. 6.6 - Prob. 25ECh. 6.6 - Prob. 26ECh. 6.6 - Prob. 27ECh. 6.6 - Prob. 28ECh. 6.6 - Prob. 29ECh. 6.6 - Prob. 30ECh. 6.6 - Prob. 31ECh. 6.6 - Prob. 32ECh. 6.6 - Prob. 33ECh. 6.6 - Prob. 34ECh. 6.6 - Prob. 35ECh. 6.6 - Prob. 36ECh. 6.6 - Prob. 37ECh. 6.6 - Prob. 38ECh. 6.6 - Surveying To find the distance across a small...Ch. 6.6 - Geometry A parallelogram has sides of lengths 3...Ch. 6.6 - Calculating Distance Two straight roads diverge at...Ch. 6.6 - Calculating Distance A car travels along a...Ch. 6.6 - Dead Reckoning A pilot flies in a straight path...Ch. 6.6 - Navigation Two boats leave the same port at the...Ch. 6.6 - Prob. 45ECh. 6.6 - Navigation Airport B is 300 mi from airport A at a...Ch. 6.6 - Triangular Field A triangular field has sides of...Ch. 6.6 - Towing a Barge Two tugboats that are 120 ft apart...Ch. 6.6 - Flying Kites A boy is flying two kites at the same...Ch. 6.6 - Securing a Tower A 125-ft tower is located on the...Ch. 6.6 - Cable Car A steep mountain is inclined 74 to the...Ch. 6.6 - CN Tower The CN Tower in Toronto, Canada, is the...Ch. 6.6 - Land Value Land in downtown Columbia is valued at...Ch. 6.6 - Prob. 54ECh. 6 - Prob. 1RCCCh. 6 - Prob. 2RCCCh. 6 - Prob. 3RCCCh. 6 - Prob. 4RCCCh. 6 - Prob. 5RCCCh. 6 - Prob. 6RCCCh. 6 - Prob. 7RCCCh. 6 - Prob. 8RCCCh. 6 - Prob. 9RCCCh. 6 - Prob. 10RCCCh. 6 - Prob. 11RCCCh. 6 - Prob. 12RCCCh. 6 - Prob. 13RCCCh. 6 - Prob. 14RCCCh. 6 - Prob. 15RCCCh. 6 - Prob. 1RECh. 6 - Prob. 2RECh. 6 - Prob. 3RECh. 6 - Prob. 4RECh. 6 - Prob. 5RECh. 6 - Prob. 6RECh. 6 - Prob. 7RECh. 6 - Prob. 8RECh. 6 - Prob. 9RECh. 6 - Prob. 10RECh. 6 - Prob. 11RECh. 6 - Prob. 12RECh. 6 - Prob. 13RECh. 6 - Prob. 14RECh. 6 - Prob. 15RECh. 6 - Prob. 16RECh. 6 - Prob. 17RECh. 6 - Prob. 18RECh. 6 - Prob. 19RECh. 6 - Prob. 20RECh. 6 - Prob. 21RECh. 6 - Prob. 22RECh. 6 - Prob. 23RECh. 6 - Prob. 24RECh. 6 - Prob. 25RECh. 6 - Prob. 26RECh. 6 - Prob. 27RECh. 6 - Prob. 28RECh. 6 - Prob. 29RECh. 6 - Prob. 30RECh. 6 - Prob. 31RECh. 6 - Prob. 32RECh. 6 - Prob. 33RECh. 6 - Prob. 34RECh. 6 - Prob. 35RECh. 6 - Prob. 36RECh. 6 - Prob. 37RECh. 6 - Prob. 38RECh. 6 - Prob. 39RECh. 6 - Prob. 40RECh. 6 - Prob. 41RECh. 6 - Prob. 42RECh. 6 - Prob. 43RECh. 6 - Prob. 44RECh. 6 - Prob. 45RECh. 6 - Prob. 46RECh. 6 - Prob. 47RECh. 6 - Prob. 48RECh. 6 - 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(a)...Ch. 6 - Find tan + sin for the angle shown.Ch. 6 - Express the lengths a and b shown in the figure in...Ch. 6 - If cos=13 and is in Quadrant III, find tan cot ...Ch. 6 - Prob. 8TCh. 6 - Express tan in terms of sec for in Quadrant II.Ch. 6 - The base of the ladder in the figure is 6 ft from...Ch. 6 - Express in each figure in terms of x. (a) (b)Ch. 6 - Find the exact value of cos(tan1910).Ch. 6 - Prob. 13TCh. 6 - Find the side labeled x or the angle labeled . 14.Ch. 6 - Find the side labeled x or the angle labeled . 15.Ch. 6 - Prob. 16TCh. 6 - Prob. 17TCh. 6 - Prob. 18TCh. 6 - Refer to the figure below. (a) Find the area of...Ch. 6 - Refer to the figure below. (a) Find the angle...Ch. 6 - Two wires tether a balloon to the ground, as...Ch. 6 - Prob. 1PCh. 6 - Prob. 2PCh. 6 - Determining a Distance A surveyor on one side of a...Ch. 6 - Height of a Cliff To measure the height of an...Ch. 6 - Height of a Mountain To calculate the height h of...Ch. 6 - Determining a Distance A surveyor has determined...Ch. 6 - Surveying Building Lots A surveyor surveys two...Ch. 6 - Prob. 8P
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