import numpy as np
import numpy.linalg
import math

def f(x):
    det=np.linalg.det(x)
    wronskian=np.array([[x],[det]])
    w=np.linalg.det(wronskian)
    return np.int(w)
    
if f(math.exp(-3*x)):
    ("Linear independent")
else:
    print("Linear dependent")    
    

#Guys I'm trying to find wronskian determinant for this problem.
The Problem is that 
the functions f(x)=e^-3x, g(x)=cos2x and h(x)=sin2x using the wronskian determinant to find out whether it is linearly independent in the range (-infinite, +infinite)