Find the partial derivatives of f(w,x,y,z) with respect to each
variable one at a time

f(w,x,y,z) = (2w+3x+4z)^100+exp(wz)+sin(wx)+5


Answers:
f_1 = 100(2w+3x+4z)^99(2) + z exp(wz) + x cos(wx)
f_2 = 100(2w+3x+4z)^99(3) + w cos(wx)
f_3 = 0
f_4 = 100(2w+3x+4z)^99(4) + w exp(wz)