Expressing equation in terms of sin/cos
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I have the following two equations
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/207616/image.png)
I would like to have them expressed in terms of cos(q1), cos(q2) and sin(q1), sin(q2) like the following
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/207617/image.png)
is it possible?
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Greg Heath
2019-3-9
If you substitute your solutions into LHS and get the RHS, then it is possible.
Greg
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