Plot the results of a nonlinear system of equations

I have this system of four nonlinear equations:
pzaU7 Plot the results of a nonlinear system of equations

the unknowns are a1, a2, gamma1 and gamma 2. all other parameters are known. What I want is to plot the a1 vs sigma2 as below:
9luQC Plot the results of a nonlinear system of equations

I tried findinstance but it takes a lot of time to find the results for any value of sigma2, Let alone plotting a1 for different values of sigma2!
Can anybody help me?
Thanks in advance

Let’s block ads! (Why?)

Recent Questions – Mathematica Stack Exchange