How to solve for x in an sin equation?
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Hi MATLAB wizards
I am currently trying to solve the following equation; -7sin(x/7)=0 using symbolic algebra and the solve function in MATLAB.
The code that I used is as follows:
syms x
solve( (-7*sin(x/7)),x)
This code returns the value 0, which is one of the solutions, the other one is 7*pi.
So how can I produce both of these solutions?
Any form of help would be appreciated.
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John D'Errico
le 19 Sep 2020
Modifié(e) : John D'Errico
le 19 Sep 2020
No. There are INFINITELY many solutions. So you cannot say you want the OTHER solution. You can simply enough find a positive solution though.
syms x positive
solve( (-7*sin(x/7)),x)
ans =
7*pi
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