Algebra and Trigonometry: Structure and Method, Book 2
Algebra and Trigonometry: Structure and Method, Book 2
2000th Edition
ISBN: 9780395977255
Author: MCDOUGAL LITTEL
Publisher: McDougal Littell
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Chapter 14.8, Problem 3E
To determine

The proof of the formula for tan1a+tan1b .

Expert Solution & Answer
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Explanation of Solution

To proof the formula,

Let,

  tanx=atany=b

Now we know that,

  tan(x+y)=tanx+tany1tanxtany

Now,

  tan1(tan(x+y))=tan1(tanx+tany1tanxtany)x+y=tan1(tanx+tany1tanxtany)since,tanx=atany=bTherefore,x=tan1ay=tan1bNow putting the values of x and y.tan1a+tan1b=tan1(a+b1ab)

Thus the formula is proved.

Chapter 14 Solutions

Algebra and Trigonometry: Structure and Method, Book 2

Ch. 14.1 - Prob. 11OECh. 14.1 - Prob. 12OECh. 14.1 - Prob. 13OECh. 14.1 - Prob. 14OECh. 14.1 - Prob. 15OECh. 14.1 - Prob. 16OECh. 14.1 - Prob. 1WECh. 14.1 - Prob. 2WECh. 14.1 - Prob. 3WECh. 14.1 - Prob. 4WECh. 14.1 - Prob. 5WECh. 14.1 - Prob. 6WECh. 14.1 - Prob. 7WECh. 14.1 - Prob. 8WECh. 14.1 - Prob. 9WECh. 14.1 - Prob. 10WECh. 14.1 - Prob. 11WECh. 14.1 - Prob. 12WECh. 14.1 - Prob. 13WECh. 14.1 - Prob. 14WECh. 14.1 - Prob. 15WECh. 14.1 - Prob. 16WECh. 14.1 - Prob. 17WECh. 14.1 - Prob. 18WECh. 14.1 - Prob. 19WECh. 14.1 - Prob. 20WECh. 14.1 - Prob. 21WECh. 14.1 - Prob. 22WECh. 14.1 - Prob. 1PCh. 14.1 - Prob. 2PCh. 14.1 - Prob. 3PCh. 14.1 - Prob. 4PCh. 14.1 - Prob. 5PCh. 14.1 - Prob. 6PCh. 14.1 - Prob. 7PCh. 14.1 - Prob. 8PCh. 14.1 - Prob. 9PCh. 14.1 - Prob. 1MRECh. 14.1 - Prob. 2MRECh. 14.1 - Prob. 3MRECh. 14.1 - Prob. 4MRECh. 14.1 - Prob. 5MRECh. 14.1 - Prob. 6MRECh. 14.1 - Prob. 7MRECh. 14.1 - Prob. 8MRECh. 14.1 - Prob. 9MRECh. 14.2 - Prob. 1OECh. 14.2 - Prob. 2OECh. 14.2 - Prob. 3OECh. 14.2 - Prob. 4OECh. 14.2 - Prob. 5OECh. 14.2 - Prob. 6OECh. 14.2 - Prob. 7OECh. 14.2 - Prob. 8OECh. 14.2 - Prob. 9OECh. 14.2 - Prob. 10OECh. 14.2 - Prob. 11OECh. 14.2 - Prob. 12OECh. 14.2 - Prob. 1WECh. 14.2 - Prob. 2WECh. 14.2 - Prob. 3WECh. 14.2 - Prob. 4WECh. 14.2 - Prob. 5WECh. 14.2 - Prob. 6WECh. 14.2 - Prob. 7WECh. 14.2 - Prob. 8WECh. 14.2 - Prob. 9WECh. 14.2 - Prob. 10WECh. 14.2 - Prob. 11WECh. 14.2 - Prob. 12WECh. 14.2 - Prob. 13WECh. 14.2 - Prob. 14WECh. 14.2 - Prob. 15WECh. 14.2 - Prob. 16WECh. 14.2 - Prob. 17WECh. 14.2 - Prob. 18WECh. 14.2 - Prob. 19WECh. 14.2 - Prob. 20WECh. 14.2 - Prob. 21WECh. 14.2 - Prob. 22WECh. 14.2 - Prob. 23WECh. 14.2 - Prob. 24WECh. 14.2 - Prob. 25WECh. 14.2 - Prob. 26WECh. 14.2 - Prob. 27WECh. 14.2 - Prob. 28WECh. 14.2 - Prob. 29WECh. 14.2 - Prob. 30WECh. 14.2 - Prob. 31WECh. 14.2 - Prob. 32WECh. 14.2 - Prob. 1CECh. 14.2 - Prob. 2CECh. 14.2 - Prob. 3CECh. 14.2 - Prob. 4CECh. 14.2 - Prob. 1STCh. 14.2 - Prob. 2STCh. 14.2 - Prob. 3STCh. 14.2 - Prob. 4STCh. 14.2 - Prob. 1ECh. 14.2 - Prob. 2ECh. 14.2 - Prob. 3ECh. 14.2 - Prob. 4ECh. 14.2 - Prob. 5ECh. 14.2 - Prob. 6ECh. 14.2 - Prob. 7ECh. 14.2 - Prob. 8ECh. 14.2 - Prob. 9ECh. 14.2 - Prob. 10ECh. 14.2 - Prob. 11ECh. 14.2 - Prob. 12ECh. 14.2 - Prob. 13ECh. 14.2 - Prob. 14ECh. 14.2 - Prob. 15ECh. 14.3 - Prob. 1OECh. 14.3 - Prob. 2OECh. 14.3 - Prob. 3OECh. 14.3 - Prob. 4OECh. 14.3 - Prob. 5OECh. 14.3 - Prob. 6OECh. 14.3 - Prob. 7OECh. 14.3 - Prob. 8OECh. 14.3 - Prob. 9OECh. 14.3 - Prob. 10OECh. 14.3 - Prob. 11OECh. 14.3 - Prob. 12OECh. 14.3 - Prob. 1WECh. 14.3 - Prob. 2WECh. 14.3 - Prob. 3WECh. 14.3 - Prob. 4WECh. 14.3 - Prob. 5WECh. 14.3 - Prob. 6WECh. 14.3 - Prob. 7WECh. 14.3 - Prob. 8WECh. 14.3 - Prob. 9WECh. 14.3 - Prob. 10WECh. 14.3 - Prob. 11WECh. 14.3 - Prob. 12WECh. 14.3 - Prob. 13WECh. 14.3 - Prob. 14WECh. 14.3 - Prob. 15WECh. 14.3 - Prob. 16WECh. 14.3 - Prob. 17WECh. 14.3 - Prob. 18WECh. 14.3 - Prob. 19WECh. 14.3 - Prob. 20WECh. 14.3 - Prob. 21WECh. 14.3 - Prob. 22WECh. 14.3 - Prob. 23WECh. 14.3 - Prob. 24WECh. 14.3 - Prob. 25WECh. 14.3 - Prob. 26WECh. 14.3 - Prob. 27WECh. 14.3 - Prob. 28WECh. 14.3 - Prob. 29WECh. 14.3 - Prob. 30WECh. 14.3 - Prob. 31WECh. 14.3 - Prob. 32WECh. 14.3 - Prob. 33WECh. 14.3 - Prob. 34WECh. 14.3 - Prob. 35WECh. 14.3 - Prob. 36WECh. 14.3 - Prob. 1MRECh. 14.3 - Prob. 2MRECh. 14.3 - Prob. 3MRECh. 14.3 - Prob. 4MRECh. 14.3 - Prob. 5MRECh. 14.3 - Prob. 6MRECh. 14.3 - Prob. 7MRECh. 14.3 - Prob. 8MRECh. 14.3 - Prob. 9MRECh. 14.3 - Prob. 10MRECh. 14.4 - Prob. 1OECh. 14.4 - Prob. 2OECh. 14.4 - Prob. 3OECh. 14.4 - Prob. 4OECh. 14.4 - Prob. 5OECh. 14.4 - Prob. 6OECh. 14.4 - Prob. 7OECh. 14.4 - Prob. 8OECh. 14.4 - Prob. 9OECh. 14.4 - Prob. 10OECh. 14.4 - Prob. 11OECh. 14.4 - Prob. 12OECh. 14.4 - Prob. 1WECh. 14.4 - Prob. 2WECh. 14.4 - Prob. 3WECh. 14.4 - Prob. 4WECh. 14.4 - Prob. 5WECh. 14.4 - Prob. 6WECh. 14.4 - Prob. 7WECh. 14.4 - Prob. 8WECh. 14.4 - Prob. 9WECh. 14.4 - Prob. 10WECh. 14.4 - Prob. 11WECh. 14.4 - Prob. 12WECh. 14.4 - Prob. 13WECh. 14.4 - Prob. 14WECh. 14.4 - Prob. 15WECh. 14.4 - Prob. 16WECh. 14.4 - Prob. 17WECh. 14.4 - Prob. 18WECh. 14.4 - Prob. 19WECh. 14.4 - Prob. 20WECh. 14.4 - Prob. 21WECh. 14.4 - Prob. 22WECh. 14.4 - Prob. 23WECh. 14.4 - Prob. 24WECh. 14.4 - Prob. 25WECh. 14.4 - Prob. 26WECh. 14.4 - Prob. 27WECh. 14.4 - Prob. 28WECh. 14.4 - Prob. 29WECh. 14.4 - Prob. 30WECh. 14.4 - Prob. 31WECh. 14.4 - Prob. 32WECh. 14.4 - Prob. 33WECh. 14.4 - Prob. 34WECh. 14.4 - Prob. 35WECh. 14.4 - Prob. 36WECh. 14.4 - Prob. 37WECh. 14.5 - Prob. 1OECh. 14.5 - Prob. 2OECh. 14.5 - Prob. 3OECh. 14.5 - Prob. 1WECh. 14.5 - Prob. 2WECh. 14.5 - Prob. 3WECh. 14.5 - Prob. 4WECh. 14.5 - Prob. 5WECh. 14.5 - Prob. 6WECh. 14.5 - Prob. 7WECh. 14.5 - Prob. 8WECh. 14.5 - Prob. 9WECh. 14.5 - Prob. 10WECh. 14.5 - Prob. 11WECh. 14.5 - Prob. 12WECh. 14.5 - Prob. 13WECh. 14.5 - Prob. 14WECh. 14.5 - Prob. 15WECh. 14.5 - Prob. 16WECh. 14.5 - Prob. 17WECh. 14.5 - Prob. 18WECh. 14.5 - Prob. 19WECh. 14.5 - Prob. 20WECh. 14.5 - Prob. 21WECh. 14.5 - Prob. 22WECh. 14.5 - Prob. 23WECh. 14.5 - Prob. 1MRECh. 14.5 - Prob. 2MRECh. 14.5 - Prob. 3MRECh. 14.5 - Prob. 4MRECh. 14.5 - Prob. 5MRECh. 14.5 - Prob. 6MRECh. 14.5 - Prob. 7MRECh. 14.5 - Prob. 1STCh. 14.5 - Prob. 2STCh. 14.5 - Prob. 3STCh. 14.5 - Prob. 4STCh. 14.5 - Prob. 5STCh. 14.5 - Prob. 6STCh. 14.6 - Prob. 1OECh. 14.6 - Prob. 2OECh. 14.6 - Prob. 3OECh. 14.6 - Prob. 4OECh. 14.6 - Prob. 5OECh. 14.6 - Prob. 6OECh. 14.6 - Prob. 7OECh. 14.6 - Prob. 8OECh. 14.6 - Prob. 1WECh. 14.6 - Prob. 2WECh. 14.6 - Prob. 3WECh. 14.6 - Prob. 4WECh. 14.6 - Prob. 5WECh. 14.6 - Prob. 6WECh. 14.6 - Prob. 7WECh. 14.6 - Prob. 8WECh. 14.6 - Prob. 9WECh. 14.6 - Prob. 10WECh. 14.6 - Prob. 11WECh. 14.6 - Prob. 12WECh. 14.6 - Prob. 13WECh. 14.6 - Prob. 14WECh. 14.6 - Prob. 15WECh. 14.6 - Prob. 16WECh. 14.6 - Prob. 17WECh. 14.6 - Prob. 18WECh. 14.6 - Prob. 19WECh. 14.6 - Prob. 20WECh. 14.6 - Prob. 21WECh. 14.6 - Prob. 22WECh. 14.6 - Prob. 23WECh. 14.6 - Prob. 24WECh. 14.6 - Prob. 25WECh. 14.7 - Prob. 1OECh. 14.7 - Prob. 2OECh. 14.7 - Prob. 3OECh. 14.7 - Prob. 4OECh. 14.7 - Prob. 5OECh. 14.7 - Prob. 6OECh. 14.7 - Prob. 7OECh. 14.7 - Prob. 8OECh. 14.7 - Prob. 1WECh. 14.7 - Prob. 2WECh. 14.7 - Prob. 3WECh. 14.7 - Prob. 4WECh. 14.7 - Prob. 5WECh. 14.7 - Prob. 6WECh. 14.7 - Prob. 7WECh. 14.7 - Prob. 8WECh. 14.7 - Prob. 9WECh. 14.7 - Prob. 10WECh. 14.7 - Prob. 11WECh. 14.7 - Prob. 12WECh. 14.7 - Prob. 13WECh. 14.7 - Prob. 14WECh. 14.7 - Prob. 15WECh. 14.7 - Prob. 16WECh. 14.7 - Prob. 17WECh. 14.7 - Prob. 18WECh. 14.7 - Prob. 19WECh. 14.7 - Prob. 20WECh. 14.7 - Prob. 21WECh. 14.7 - Prob. 22WECh. 14.7 - Prob. 23WECh. 14.7 - Prob. 24WECh. 14.7 - Prob. 25WECh. 14.7 - Prob. 26WECh. 14.7 - Prob. 27WECh. 14.7 - Prob. 28WECh. 14.7 - Prob. 29WECh. 14.7 - Prob. 1MRECh. 14.7 - Prob. 2MRECh. 14.7 - Prob. 3MRECh. 14.7 - Prob. 4MRECh. 14.7 - Prob. 5MRECh. 14.7 - Prob. 6MRECh. 14.7 - Prob. 7MRECh. 14.7 - Prob. 8MRECh. 14.8 - Prob. 1OECh. 14.8 - Prob. 2OECh. 14.8 - Prob. 3OECh. 14.8 - Prob. 4OECh. 14.8 - Prob. 5OECh. 14.8 - Prob. 6OECh. 14.8 - Prob. 7OECh. 14.8 - Prob. 8OECh. 14.8 - Prob. 9OECh. 14.8 - Prob. 10OECh. 14.8 - Prob. 11OECh. 14.8 - Prob. 12OECh. 14.8 - Prob. 13OECh. 14.8 - Prob. 14OECh. 14.8 - Prob. 15OECh. 14.8 - Prob. 16OECh. 14.8 - Prob. 1WECh. 14.8 - Prob. 2WECh. 14.8 - Prob. 3WECh. 14.8 - Prob. 4WECh. 14.8 - Prob. 5WECh. 14.8 - Prob. 6WECh. 14.8 - Prob. 7WECh. 14.8 - Prob. 8WECh. 14.8 - Prob. 9WECh. 14.8 - Prob. 10WECh. 14.8 - Prob. 11WECh. 14.8 - Prob. 12WECh. 14.8 - Prob. 13WECh. 14.8 - Prob. 14WECh. 14.8 - Prob. 15WECh. 14.8 - Prob. 16WECh. 14.8 - Prob. 17WECh. 14.8 - Prob. 18WECh. 14.8 - Prob. 19WECh. 14.8 - Prob. 20WECh. 14.8 - Prob. 21WECh. 14.8 - Prob. 22WECh. 14.8 - Prob. 23WECh. 14.8 - Prob. 24WECh. 14.8 - Prob. 25WECh. 14.8 - Prob. 26WECh. 14.8 - Prob. 27WECh. 14.8 - Prob. 28WECh. 14.8 - Prob. 29WECh. 14.8 - Prob. 30WECh. 14.8 - Prob. 31WECh. 14.8 - Prob. 32WECh. 14.8 - Prob. 33WECh. 14.8 - Prob. 34WECh. 14.8 - Prob. 35WECh. 14.8 - Prob. 36WECh. 14.8 - Prob. 37WECh. 14.8 - Prob. 38WECh. 14.8 - Prob. 39WECh. 14.8 - Prob. 40WECh. 14.8 - Prob. 41WECh. 14.8 - Prob. 42WECh. 14.8 - Prob. 43WECh. 14.8 - Prob. 44WECh. 14.8 - Prob. 45WECh. 14.8 - Prob. 46WECh. 14.8 - Prob. 1STCh. 14.8 - Prob. 2STCh. 14.8 - Prob. 3STCh. 14.8 - Prob. 4STCh. 14.8 - Prob. 5STCh. 14.8 - Prob. 6STCh. 14.8 - Prob. 7STCh. 14.8 - Prob. 8STCh. 14.8 - Prob. 9STCh. 14.8 - Prob. 1ECh. 14.8 - Prob. 2ECh. 14.8 - Prob. 3ECh. 14 - Prob. 1CRCh. 14 - Prob. 2CRCh. 14 - Prob. 3CRCh. 14 - Prob. 4CRCh. 14 - Prob. 5CRCh. 14 - Prob. 6CRCh. 14 - Prob. 7CRCh. 14 - Prob. 8CRCh. 14 - Prob. 9CRCh. 14 - Prob. 10CRCh. 14 - Prob. 11CRCh. 14 - Prob. 12CRCh. 14 - Prob. 13CRCh. 14 - Prob. 14CRCh. 14 - Prob. 15CRCh. 14 - Prob. 16CRCh. 14 - Prob. 1CTCh. 14 - Prob. 2CTCh. 14 - Prob. 3CTCh. 14 - Prob. 4CTCh. 14 - Prob. 5CTCh. 14 - Prob. 6CTCh. 14 - Prob. 7CTCh. 14 - Prob. 8CTCh. 14 - Prob. 9CTCh. 14 - Prob. 10CTCh. 14 - Prob. 1MPSCh. 14 - Prob. 2MPSCh. 14 - Prob. 3MPSCh. 14 - Prob. 4MPSCh. 14 - Prob. 5MPSCh. 14 - Prob. 6MPSCh. 14 - Prob. 7MPSCh. 14 - Prob. 8MPSCh. 14 - Prob. 9MPSCh. 14 - Prob. 10MPSCh. 14 - Prob. 11MPSCh. 14 - Prob. 1CLRCh. 14 - Prob. 2CLRCh. 14 - Prob. 3CLRCh. 14 - Prob. 4CLRCh. 14 - Prob. 5CLRCh. 14 - Prob. 6CLRCh. 14 - Prob. 7CLRCh. 14 - Prob. 8CLRCh. 14 - Prob. 9CLRCh. 14 - Prob. 10CLRCh. 14 - Prob. 11CLRCh. 14 - Prob. 12CLRCh. 14 - Prob. 13CLRCh. 14 - Prob. 14CLRCh. 14 - Prob. 15CLRCh. 14 - Prob. 16CLRCh. 14 - Prob. 17CLRCh. 14 - Prob. 18CLRCh. 14 - Prob. 19CLRCh. 14 - Prob. 20CLRCh. 14 - Prob. 21CLRCh. 14 - Prob. 22CLR
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