Thank you sir for your reply. i am having three equation which consists of three terms namely Amn, Bmn and Cmn which needs to be sorted out and write in matrix form.
In all three equation sin and cos terms are common through out the equation and thus can be eliminated and that is why sin and cos terms are not mentioned in the given matrix.!
First i want to simplify those three equation by removing common terms( Sin and Cos terms).
Second I want to convert those simplified equation in terms of matrix form with Amn, Bmn and Cmn in 3*1 matrix.
[3 x 3 matrix ][ 3 x 1 matrix ]=0.