//Initilization of variables
//Simplification constants
a=90
b=30
c=60
//Calculations
//Allowing for only the cos and sin terms to be zero after simplification
theta1=atand(a/(b+2*c)) //degrees
theta2=atand(a/(b+c)) //degrees
theta3=atand(a/b) //degrees
//Result
clc
printf('The values of theta1,theta2 and theta3 are %f,%f and %f respectively in Degrees',theta1,theta2,theta3)