There are no algebraic methods for solving such an equation. A graphical or other machine solution is indicated. At the source link, the graph is used to identify starting points for Newton's method iteration, and that method is used to refine the solutions to 8 significant figures. Solutions for x are shown in the table.

you need some type of numerical process......Newton's root finding algorithm is one , ...there are 5 answers...≈ - 6.8 ; - 5.4 ; - 1.4 ; 1.7 ; 4.1

That can't be solved algebraically, you just have to approximate. http://www.wolframalpha.com/input/?i=5pi*cosx+%2B+2x+%3D+0

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Cyrus

Cyrus asked in Science & Mathematics Mathematics · 3 years ago

How do you solve the following equation?

5pi*cosx + 2x = 0

5 Answers

Relevance

Sqdancefan
Lv 7
3 years ago
Favourite answer
There are no algebraic methods for solving such an equation.
A graphical or other machine solution is indicated. At the source link, the graph is used to identify starting points for Newton's method iteration, and that method is used to refine the solutions to 8 significant figures. Solutions for x are shown in the table.
Source(s): https://www.desmos.com/calculator/jcvezghslm
ted s
Lv 7
3 years ago
you need some type of numerical process......Newton's root finding algorithm is one , ...there are 5 answers...≈ - 6.8 ; - 5.4 ; - 1.4 ; 1.7 ; 4.1
Jeff Aaron
Lv 7
3 years ago
That can't be solved algebraically, you just have to approximate.
http://www.wolframalpha.com/input/?i=5pi*cosx+%2B+...
alex
Lv 7
3 years ago
use a calculator
?
3 years ago
What math are you in?

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